/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 SequenceOfStatements --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem05_label11.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-14 19:37:13,835 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-14 19:37:13,838 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-14 19:37:13,862 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-14 19:37:13,862 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-14 19:37:13,863 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-14 19:37:13,865 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-14 19:37:13,866 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-14 19:37:13,868 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-14 19:37:13,869 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-14 19:37:13,870 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2020-10-14 19:37:13,872 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-14 19:37:13,873 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-14 19:37:13,874 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-14 19:37:13,875 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-14 19:37:13,876 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-14 19:37:13,877 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-14 19:37:13,878 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-14 19:37:13,880 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-14 19:37:13,882 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-14 19:37:13,883 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-14 19:37:13,884 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-14 19:37:13,885 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-14 19:37:13,888 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-14 19:37:13,888 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-14 19:37:13,888 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-14 19:37:13,889 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-14 19:37:13,890 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-14 19:37:13,891 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-14 19:37:13,891 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-14 19:37:13,891 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-14 19:37:13,892 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-14 19:37:13,893 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-14 19:37:13,894 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-14 19:37:13,894 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-14 19:37:13,895 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-14 19:37:13,895 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-14 19:37:13,895 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-14 19:37:13,896 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-14 19:37:13,897 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-14 19:37:13,898 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
[2020-10-14 19:37:13,920 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-14 19:37:13,920 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-14 19:37:13,921 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-14 19:37:13,922 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-14 19:37:13,922 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-14 19:37:13,922 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-14 19:37:13,922 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-14 19:37:13,923 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-14 19:37:13,923 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-14 19:37:13,923 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-14 19:37:13,923 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-14 19:37:13,923 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-14 19:37:13,924 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-14 19:37:13,924 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-14 19:37:13,924 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-14 19:37:13,924 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-14 19:37:13,924 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-14 19:37:13,925 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-14 19:37:13,925 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-14 19:37:13,925 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-14 19:37:13,925 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-14 19:37:13,925 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-14 19:37:13,926 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-14 19:37:13,926 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-14 19:37:13,926 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-14 19:37:13,926 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-14 19:37:13,926 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-14 19:37:13,927 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-14 19:37:13,927 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-14 19:37:13,927 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 -> SequenceOfStatements
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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true;
[2020-10-14 19:37:14,266 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-14 19:37:14,281 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-14 19:37:14,289 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-14 19:37:14,292 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-14 19:37:14,292 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-14 19:37:14,293 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label11.c
[2020-10-14 19:37:14,375 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b1ab1aac/6b9c2af9480140c9a57f8c50f18c9073/FLAG1cfcf6d67
[2020-10-14 19:37:15,306 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-14 19:37:15,308 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem05_label11.c
[2020-10-14 19:37:15,360 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b1ab1aac/6b9c2af9480140c9a57f8c50f18c9073/FLAG1cfcf6d67
[2020-10-14 19:37:15,712 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b1ab1aac/6b9c2af9480140c9a57f8c50f18c9073
[2020-10-14 19:37:15,724 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-14 19:37:15,726 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-14 19:37:15,727 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-14 19:37:15,728 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-14 19:37:15,731 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-14 19:37:15,733 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:37:15" (1/1) ...
[2020-10-14 19:37:15,736 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481c894b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:15, skipping insertion in model container
[2020-10-14 19:37:15,736 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:37:15" (1/1) ...
[2020-10-14 19:37:15,744 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-14 19:37:16,003 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-14 19:37:18,374 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 19:37:18,379 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-14 19:37:19,535 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 19:37:19,602 INFO  L208         MainTranslator]: Completed translation
[2020-10-14 19:37:19,603 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19 WrapperNode
[2020-10-14 19:37:19,604 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-14 19:37:19,604 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-14 19:37:19,605 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-14 19:37:19,605 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-14 19:37:19,619 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,621 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,712 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,712 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,870 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,914 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:19,967 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (1/1) ...
[2020-10-14 19:37:20,016 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-14 19:37:20,016 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-14 19:37:20,017 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-14 19:37:20,017 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-14 19:37:20,018 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (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
[2020-10-14 19:37:20,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-14 19:37:20,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-14 19:37:20,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-10-14 19:37:20,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2020-10-14 19:37:20,097 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2020-10-14 19:37:20,098 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2020-10-14 19:37:20,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2020-10-14 19:37:20,099 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2020-10-14 19:37:20,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2020-10-14 19:37:20,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2020-10-14 19:37:20,100 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-14 19:37:20,100 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-10-14 19:37:20,100 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2020-10-14 19:37:20,100 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2020-10-14 19:37:20,101 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2020-10-14 19:37:20,101 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2020-10-14 19:37:20,102 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2020-10-14 19:37:20,102 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2020-10-14 19:37:20,102 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2020-10-14 19:37:20,102 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-14 19:37:20,103 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-14 19:37:20,103 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-10-14 19:37:20,103 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-14 19:37:20,103 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-14 19:37:20,104 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-14 19:37:28,778 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-14 19:37:28,778 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-10-14 19:37:28,794 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:37:28 BoogieIcfgContainer
[2020-10-14 19:37:28,795 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-14 19:37:28,796 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-14 19:37:28,796 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-14 19:37:28,799 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-14 19:37:28,800 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:37:15" (1/3) ...
[2020-10-14 19:37:28,800 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec39b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:37:28, skipping insertion in model container
[2020-10-14 19:37:28,801 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:37:19" (2/3) ...
[2020-10-14 19:37:28,801 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec39b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:37:28, skipping insertion in model container
[2020-10-14 19:37:28,801 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:37:28" (3/3) ...
[2020-10-14 19:37:28,803 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem05_label11.c
[2020-10-14 19:37:28,813 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-14 19:37:28,823 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-14 19:37:28,836 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-14 19:37:28,867 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-14 19:37:28,868 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-14 19:37:28,868 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-14 19:37:28,868 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-14 19:37:28,868 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-14 19:37:28,868 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-14 19:37:28,868 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-14 19:37:28,868 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-14 19:37:28,976 INFO  L276                IsEmpty]: Start isEmpty. Operand 2222 states.
[2020-10-14 19:37:29,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1669
[2020-10-14 19:37:29,084 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:37:29,087 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:37:29,087 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:37:29,095 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:37:29,096 INFO  L82        PathProgramCache]: Analyzing trace with hash -1186066567, now seen corresponding path program 1 times
[2020-10-14 19:37:29,105 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:37:29,105 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715492776]
[2020-10-14 19:37:29,107 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:37:29,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:37:30,414 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:37:35,003 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:37:35,003 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1690
[2020-10-14 19:37:35,004 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:37:35,004 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5038
[2020-10-14 19:37:35,006 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:37:35,007 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:37:35,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-10-14 19:37:35,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-14 19:37:35,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1684
[2020-10-14 19:37:35,007 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-14 19:37:36,345 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:37:36,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:37:36,363 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:37:36,372 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:37:36,372 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:37:36,373 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:37:36,373 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-10-14 19:37:36,373 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:37:36,373 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:37:36,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:37:36,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:37:36,374 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-14 19:37:36,374 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:37:40,267 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-14 19:37:40,268 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715492776]
[2020-10-14 19:37:40,269 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-14 19:37:40,270 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-14 19:37:40,270 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905829611]
[2020-10-14 19:37:40,279 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-14 19:37:40,280 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:37:40,290 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-14 19:37:40,290 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-14 19:37:40,292 INFO  L87              Difference]: Start difference. First operand 2222 states. Second operand 5 states.
[2020-10-14 19:38:07,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 19:38:07,038 INFO  L93              Difference]: Finished difference Result 8124 states and 15411 transitions.
[2020-10-14 19:38:07,040 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-14 19:38:07,041 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 1668
[2020-10-14 19:38:07,049 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 19:38:07,104 INFO  L225             Difference]: With dead ends: 8124
[2020-10-14 19:38:07,104 INFO  L226             Difference]: Without dead ends: 5834
[2020-10-14 19:38:07,119 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-14 19:38:07,150 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5834 states.
[2020-10-14 19:38:07,359 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5801.
[2020-10-14 19:38:07,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5801 states.
[2020-10-14 19:38:07,393 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 9374 transitions.
[2020-10-14 19:38:07,395 INFO  L78                 Accepts]: Start accepts. Automaton has 5801 states and 9374 transitions. Word has length 1668
[2020-10-14 19:38:07,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 19:38:07,401 INFO  L479      AbstractCegarLoop]: Abstraction has 5801 states and 9374 transitions.
[2020-10-14 19:38:07,401 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-14 19:38:07,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 5801 states and 9374 transitions.
[2020-10-14 19:38:07,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1678
[2020-10-14 19:38:07,732 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:38:07,734 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:38:07,734 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-14 19:38:07,735 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:38:07,735 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:38:07,736 INFO  L82        PathProgramCache]: Analyzing trace with hash -1221106258, now seen corresponding path program 1 times
[2020-10-14 19:38:07,736 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:38:07,737 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [100354479]
[2020-10-14 19:38:07,737 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:38:07,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:07,931 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:10,440 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:13,171 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:13,172 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1701
[2020-10-14 19:38:13,172 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-14 19:38:13,172 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5267
[2020-10-14 19:38:13,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:13,173 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:13,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-10-14 19:38:13,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-10-14 19:38:13,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1681
[2020-10-14 19:38:13,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:15,173 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:38:15,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:15,177 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:15,180 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:15,180 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:38:15,180 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:38:15,181 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-14 19:38:15,181 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:15,181 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:15,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 19:38:15,187 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:38:15,188 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 19:38:15,188 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-10-14 19:38:15,204 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-10-14 19:38:15,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:15,209 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:15,218 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:15,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-10-14 19:38:15,218 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:38:15,218 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-10-14 19:38:15,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:15,219 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:15,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:38:15,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:38:15,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-10-14 19:38:15,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:17,455 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-14 19:38:17,456 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [100354479]
[2020-10-14 19:38:17,456 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-14 19:38:17,458 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-10-14 19:38:17,458 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827842568]
[2020-10-14 19:38:17,462 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-14 19:38:17,463 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:38:17,463 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-14 19:38:17,463 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-10-14 19:38:17,464 INFO  L87              Difference]: Start difference. First operand 5801 states and 9374 transitions. Second operand 6 states.
[2020-10-14 19:38:45,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 19:38:45,628 INFO  L93              Difference]: Finished difference Result 22215 states and 36840 transitions.
[2020-10-14 19:38:45,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-14 19:38:45,629 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 1677
[2020-10-14 19:38:45,632 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 19:38:45,726 INFO  L225             Difference]: With dead ends: 22215
[2020-10-14 19:38:45,727 INFO  L226             Difference]: Without dead ends: 16420
[2020-10-14 19:38:45,748 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2020-10-14 19:38:45,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16420 states.
[2020-10-14 19:38:46,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16420 to 16356.
[2020-10-14 19:38:46,160 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 16356 states.
[2020-10-14 19:38:46,210 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16356 states to 16356 states and 24046 transitions.
[2020-10-14 19:38:46,211 INFO  L78                 Accepts]: Start accepts. Automaton has 16356 states and 24046 transitions. Word has length 1677
[2020-10-14 19:38:46,214 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 19:38:46,215 INFO  L479      AbstractCegarLoop]: Abstraction has 16356 states and 24046 transitions.
[2020-10-14 19:38:46,215 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-14 19:38:46,215 INFO  L276                IsEmpty]: Start isEmpty. Operand 16356 states and 24046 transitions.
[2020-10-14 19:38:46,311 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1705
[2020-10-14 19:38:46,312 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:38:46,466 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:38:46,467 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-14 19:38:46,467 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:38:46,467 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:38:46,468 INFO  L82        PathProgramCache]: Analyzing trace with hash 1850693668, now seen corresponding path program 1 times
[2020-10-14 19:38:46,469 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:38:46,469 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537483139]
[2020-10-14 19:38:46,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:38:46,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:46,614 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:46,732 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:51,678 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:51,678 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1730
[2020-10-14 19:38:51,679 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-14 19:38:51,679 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5088
[2020-10-14 19:38:51,679 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:51,679 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:51,679 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:38:51,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-10-14 19:38:51,680 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 25
[2020-10-14 19:38:51,680 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:52,101 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:38:52,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:52,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:52,112 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:52,113 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:38:52,113 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:38:52,114 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-14 19:38:52,114 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:52,115 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:52,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 19:38:52,115 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:38:52,116 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 19:38:52,116 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:52,135 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-10-14 19:38:52,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:52,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:52,157 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:52,158 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-10-14 19:38:52,158 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:38:52,158 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-10-14 19:38:52,159 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:52,159 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:52,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:38:52,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:38:52,160 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-10-14 19:38:52,161 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:52,174 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2020-10-14 19:38:52,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:38:52,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:38:52,255 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:38:52,255 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-10-14 19:38:52,255 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:38:52,256 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 65
[2020-10-14 19:38:52,256 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:38:52,257 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:38:52,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:38:52,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 0
[2020-10-14 19:38:52,257 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-10-14 19:38:52,258 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:38:53,660 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-10-14 19:38:53,660 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537483139]
[2020-10-14 19:38:53,660 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-14 19:38:53,661 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-10-14 19:38:53,661 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466981495]
[2020-10-14 19:38:53,666 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-14 19:38:53,670 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:38:53,671 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-14 19:38:53,671 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-10-14 19:38:53,671 INFO  L87              Difference]: Start difference. First operand 16356 states and 24046 transitions. Second operand 7 states.
[2020-10-14 19:39:16,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 19:39:16,730 INFO  L93              Difference]: Finished difference Result 48728 states and 73808 transitions.
[2020-10-14 19:39:16,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-10-14 19:39:16,732 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 1704
[2020-10-14 19:39:16,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 19:39:16,853 INFO  L225             Difference]: With dead ends: 48728
[2020-10-14 19:39:16,853 INFO  L226             Difference]: Without dead ends: 32378
[2020-10-14 19:39:16,908 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2020-10-14 19:39:16,959 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32378 states.
[2020-10-14 19:39:17,579 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32378 to 32348.
[2020-10-14 19:39:17,580 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 32348 states.
[2020-10-14 19:39:17,646 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32348 states to 32348 states and 46855 transitions.
[2020-10-14 19:39:17,650 INFO  L78                 Accepts]: Start accepts. Automaton has 32348 states and 46855 transitions. Word has length 1704
[2020-10-14 19:39:17,651 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 19:39:17,651 INFO  L479      AbstractCegarLoop]: Abstraction has 32348 states and 46855 transitions.
[2020-10-14 19:39:17,651 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-14 19:39:17,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 32348 states and 46855 transitions.
[2020-10-14 19:39:17,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1707
[2020-10-14 19:39:17,757 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:39:17,758 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:39:17,759 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-14 19:39:17,759 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:39:17,759 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:39:17,760 INFO  L82        PathProgramCache]: Analyzing trace with hash 712316755, now seen corresponding path program 1 times
[2020-10-14 19:39:17,760 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:39:17,761 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753674939]
[2020-10-14 19:39:17,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:39:17,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:17,923 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:19,248 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:23,075 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:23,076 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1730
[2020-10-14 19:39:23,076 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-14 19:39:23,077 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5185
[2020-10-14 19:39:23,077 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:23,078 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:23,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-10-14 19:39:23,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 5
[2020-10-14 19:39:23,078 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 42
[2020-10-14 19:39:23,079 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:39:23,511 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:39:23,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:23,517 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:23,524 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:23,525 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:39:23,525 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:39:23,525 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-14 19:39:23,525 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:23,525 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:23,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:39:23,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:39:23,526 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-14 19:39:23,526 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 19:39:23,555 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-10-14 19:39:23,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:23,571 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:23,600 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:23,701 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:23,701 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 39
[2020-10-14 19:39:23,702 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-14 19:39:23,702 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 136
[2020-10-14 19:39:23,703 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:23,706 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:23,706 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:39:23,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 0
[2020-10-14 19:39:23,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-14 19:39:23,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-10-14 19:39:24,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-14 19:39:24,849 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753674939]
[2020-10-14 19:39:24,849 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-14 19:39:24,849 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-10-14 19:39:24,850 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246902172]
[2020-10-14 19:39:24,852 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-14 19:39:24,852 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:39:24,852 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-14 19:39:24,853 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-10-14 19:39:24,853 INFO  L87              Difference]: Start difference. First operand 32348 states and 46855 transitions. Second operand 7 states.
[2020-10-14 19:39:48,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 19:39:48,094 INFO  L93              Difference]: Finished difference Result 81361 states and 121034 transitions.
[2020-10-14 19:39:48,099 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-10-14 19:39:48,100 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 1706
[2020-10-14 19:39:48,100 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 19:39:48,288 INFO  L225             Difference]: With dead ends: 81361
[2020-10-14 19:39:48,288 INFO  L226             Difference]: Without dead ends: 49019
[2020-10-14 19:39:48,376 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2020-10-14 19:39:48,437 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49019 states.
[2020-10-14 19:39:49,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49019 to 48863.
[2020-10-14 19:39:49,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 48863 states.
[2020-10-14 19:39:49,419 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48863 states to 48863 states and 63349 transitions.
[2020-10-14 19:39:49,421 INFO  L78                 Accepts]: Start accepts. Automaton has 48863 states and 63349 transitions. Word has length 1706
[2020-10-14 19:39:49,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 19:39:49,422 INFO  L479      AbstractCegarLoop]: Abstraction has 48863 states and 63349 transitions.
[2020-10-14 19:39:49,422 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-14 19:39:49,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 48863 states and 63349 transitions.
[2020-10-14 19:39:49,534 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1739
[2020-10-14 19:39:49,534 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:39:49,535 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:39:49,536 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-14 19:39:49,536 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:39:49,536 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:39:49,537 INFO  L82        PathProgramCache]: Analyzing trace with hash 1078654521, now seen corresponding path program 1 times
[2020-10-14 19:39:49,537 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:39:49,537 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478330297]
[2020-10-14 19:39:49,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:39:49,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:49,804 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:50,226 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:54,737 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:54,737 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1764
[2020-10-14 19:39:54,737 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-10-14 19:39:54,737 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5017
[2020-10-14 19:39:54,737 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:54,738 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:54,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:39:54,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 32
[2020-10-14 19:39:54,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 51
[2020-10-14 19:39:54,738 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:39:55,035 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:39:55,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:55,037 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:55,039 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:55,040 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:39:55,042 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:39:55,042 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 19:39:55,043 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:55,043 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:55,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 19:39:55,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:39:55,043 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 19:39:55,044 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:39:55,067 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-10-14 19:39:55,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:55,075 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:55,087 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:55,087 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 23
[2020-10-14 19:39:55,087 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:39:55,087 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-10-14 19:39:55,087 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:55,088 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:55,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:39:55,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:39:55,088 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-10-14 19:39:55,088 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:39:55,099 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-10-14 19:39:55,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:39:55,119 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:39:55,172 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:39:55,173 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-14 19:39:55,173 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:39:55,173 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-10-14 19:39:55,173 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:39:55,173 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:39:55,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:39:55,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 0
[2020-10-14 19:39:55,174 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 49
[2020-10-14 19:39:55,174 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:39:56,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 83 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-10-14 19:39:56,389 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478330297]
[2020-10-14 19:39:56,390 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-14 19:39:56,390 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-10-14 19:39:56,390 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860669760]
[2020-10-14 19:39:56,393 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-10-14 19:39:56,393 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:39:56,393 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-10-14 19:39:56,394 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-10-14 19:39:56,394 INFO  L87              Difference]: Start difference. First operand 48863 states and 63349 transitions. Second operand 8 states.
[2020-10-14 19:40:31,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 19:40:31,175 INFO  L93              Difference]: Finished difference Result 101113 states and 132344 transitions.
[2020-10-14 19:40:31,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-10-14 19:40:31,176 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 1738
[2020-10-14 19:40:31,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 19:40:31,332 INFO  L225             Difference]: With dead ends: 101113
[2020-10-14 19:40:31,333 INFO  L226             Difference]: Without dead ends: 52256
[2020-10-14 19:40:31,400 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-10-14 19:40:31,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52256 states.
[2020-10-14 19:40:32,256 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52256 to 52081.
[2020-10-14 19:40:32,256 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 52081 states.
[2020-10-14 19:40:32,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52081 states to 52081 states and 63414 transitions.
[2020-10-14 19:40:32,383 INFO  L78                 Accepts]: Start accepts. Automaton has 52081 states and 63414 transitions. Word has length 1738
[2020-10-14 19:40:32,384 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 19:40:32,384 INFO  L479      AbstractCegarLoop]: Abstraction has 52081 states and 63414 transitions.
[2020-10-14 19:40:32,384 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-10-14 19:40:32,384 INFO  L276                IsEmpty]: Start isEmpty. Operand 52081 states and 63414 transitions.
[2020-10-14 19:40:32,489 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1757
[2020-10-14 19:40:32,490 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 19:40:32,491 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 19:40:32,491 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-14 19:40:32,492 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 19:40:32,492 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 19:40:32,493 INFO  L82        PathProgramCache]: Analyzing trace with hash 487126759, now seen corresponding path program 1 times
[2020-10-14 19:40:32,493 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 19:40:32,493 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265364018]
[2020-10-14 19:40:32,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 19:40:32,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:40:32,994 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:33,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:36,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:38,019 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:40:38,019 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 1782
[2020-10-14 19:40:38,019 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-10-14 19:40:38,019 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5053
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 20
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 50
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1731
[2020-10-14 19:40:38,020 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:40:38,597 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 19:40:38,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:40:38,600 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:40:38,602 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:40:38,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 19:40:38,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:40:38,603 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 19:40:38,603 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:40:38,620 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-10-14 19:40:38,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:40:38,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:38,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:40:38,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-10-14 19:40:38,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:40:38,649 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 21
[2020-10-14 19:40:38,649 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:40:38,650 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:40:38,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 19:40:38,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 19:40:38,650 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 35
[2020-10-14 19:40:38,650 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:40:38,656 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2020-10-14 19:40:38,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 19:40:38,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 19:40:38,709 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 45
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-10-14 19:40:38,710 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 0
[2020-10-14 19:40:38,711 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 49
[2020-10-14 19:40:38,711 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-10-14 19:40:41,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 122 backedges. 113 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2020-10-14 19:40:41,077 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265364018]
[2020-10-14 19:40:41,078 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-10-14 19:40:41,078 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2020-10-14 19:40:41,078 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491242906]
[2020-10-14 19:40:41,090 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-14 19:40:41,090 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 19:40:41,091 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-14 19:40:41,091 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-10-14 19:40:41,091 INFO  L87              Difference]: Start difference. First operand 52081 states and 63414 transitions. Second operand 6 states.