/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=BIGGEST --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_label36.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:31:28,746 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:31:28,750 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:31:28,793 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:31:28,794 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:31:28,801 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:31:28,803 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-09-24 20:31:28,812 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-24 20:31:28,814 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:31:28,816 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:31:28,819 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:31:28,821 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:31:28,822 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:31:28,823 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:31:28,825 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:31:28,833 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:31:28,835 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:31:28,836 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:31:28,837 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:31:28,838 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:31:28,845 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:31:28,845 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:31:28,845 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:31:28,849 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:31:28,850 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:31:28,851 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:31:28,851 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:31:28,852 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:31:28,855 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:31:28,856 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:31:28,857 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:31:28,857 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:31:28,858 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-09-24 20:31:28,858 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-24 20:31:28,860 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:31:28,861 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
[2020-09-24 20:31:28,885 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:31:28,886 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:31:28,887 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:31:28,887 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:31:28,887 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:31:28,888 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:31:28,888 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:31:28,888 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:31:28,888 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:31:28,888 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:31:28,889 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:31:28,889 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:31:28,889 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:31:28,889 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:31:28,889 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:31:28,890 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:31:28,890 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:31:28,890 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:31:28,890 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:31:28,890 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:31:28,891 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:31:28,891 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:31:28,891 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:31:28,891 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:31:28,891 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:31:28,892 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:31:28,892 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:31:28,892 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:31:28,892 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:31:28,892 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;
[2020-09-24 20:31:29,320 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:31:29,337 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:31:29,341 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:31:29,343 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:31:29,343 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:31:29,344 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c
[2020-09-24 20:31:29,414 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec6fd1e3/82f635fe2f304a499415bdce520e852c/FLAG48ccf99e0
[2020-09-24 20:31:30,070 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:31:30,073 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label36.c
[2020-09-24 20:31:30,089 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec6fd1e3/82f635fe2f304a499415bdce520e852c/FLAG48ccf99e0
[2020-09-24 20:31:30,258 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7ec6fd1e3/82f635fe2f304a499415bdce520e852c
[2020-09-24 20:31:30,272 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:31:30,277 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:31:30,278 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:31:30,279 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:31:30,284 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:31:30,285 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:31:30" (1/1) ...
[2020-09-24 20:31:30,290 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:30, skipping insertion in model container
[2020-09-24 20:31:30,290 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:31:30" (1/1) ...
[2020-09-24 20:31:30,300 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:31:30,350 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:31:30,957 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:31:30,972 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:31:31,068 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:31:31,087 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:31:31,088 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31 WrapperNode
[2020-09-24 20:31:31,088 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:31:31,089 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:31:31,089 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:31:31,089 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:31:31,103 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,103 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,122 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,122 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,170 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,181 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,185 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (1/1) ...
[2020-09-24 20:31:31,192 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:31:31,192 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:31:31,193 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:31:31,193 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:31:31,194 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (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
[2020-09-24 20:31:31,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:31:31,270 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:31:31,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-24 20:31:31,271 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:31:31,271 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-24 20:31:31,271 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:31:31,271 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:31:31,271 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 20:31:31,271 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:31:31,272 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:31:31,272 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:31:32,526 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:31:32,527 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 20:31:32,536 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:31:32 BoogieIcfgContainer
[2020-09-24 20:31:32,536 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:31:32,537 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:31:32,537 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:31:32,541 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:31:32,541 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:31:30" (1/3) ...
[2020-09-24 20:31:32,542 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fc2557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:31:32, skipping insertion in model container
[2020-09-24 20:31:32,543 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:31:31" (2/3) ...
[2020-09-24 20:31:32,543 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fc2557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:31:32, skipping insertion in model container
[2020-09-24 20:31:32,543 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:31:32" (3/3) ...
[2020-09-24 20:31:32,545 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label36.c
[2020-09-24 20:31:32,557 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:31:32,567 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:31:32,589 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:31:32,627 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:31:32,627 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:31:32,627 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:31:32,627 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:31:32,627 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:31:32,627 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:31:32,628 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:31:32,628 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:31:32,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states.
[2020-09-24 20:31:32,677 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2020-09-24 20:31:32,678 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:31:32,679 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]
[2020-09-24 20:31:32,679 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:31:32,687 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:31:32,687 INFO  L82        PathProgramCache]: Analyzing trace with hash -888076393, now seen corresponding path program 1 times
[2020-09-24 20:31:32,698 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:31:32,699 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102562472]
[2020-09-24 20:31:32,699 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:31:33,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:31:33,089 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:33,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:34,034 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:35,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:35,587 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:38,019 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:31:38,020 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 139
[2020-09-24 20:31:38,020 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 20:31:38,020 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5013
[2020-09-24 20:31:38,023 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:31:38,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 36
[2020-09-24 20:31:38,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-24 20:31:38,024 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 84
[2020-09-24 20:31:38,024 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 20:31:38,786 WARN  L193               SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37
[2020-09-24 20:31:38,954 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40
[2020-09-24 20:31:39,185 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48
[2020-09-24 20:31:39,421 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48
[2020-09-24 20:31:39,756 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43
[2020-09-24 20:31:39,975 WARN  L193               SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43
[2020-09-24 20:31:40,203 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46
[2020-09-24 20:31:40,504 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47
[2020-09-24 20:31:40,790 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46
[2020-09-24 20:31:41,075 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46
[2020-09-24 20:31:41,344 WARN  L193               SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45
[2020-09-24 20:31:41,610 WARN  L193               SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44
[2020-09-24 20:31:41,865 WARN  L193               SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44
[2020-09-24 20:31:42,118 WARN  L193               SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43
[2020-09-24 20:31:42,353 WARN  L193               SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 41
[2020-09-24 20:31:42,577 WARN  L193               SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40
[2020-09-24 20:31:42,745 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35
[2020-09-24 20:31:42,952 WARN  L193               SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 33
[2020-09-24 20:31:43,168 WARN  L193               SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31
[2020-09-24 20:31:43,364 WARN  L193               SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30
[2020-09-24 20:31:43,786 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:31:43,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:31:43,801 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:31:43,860 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:31:43,860 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 20:31:43,860 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:31:43,861 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 64
[2020-09-24 20:31:43,861 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:31:43,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 20:31:43,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:31:43,861 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-24 20:31:43,862 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:31:44,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:31:44,235 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102562472]
[2020-09-24 20:31:44,237 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:31:44,237 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35
[2020-09-24 20:31:44,238 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769417728]
[2020-09-24 20:31:44,244 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 35 states
[2020-09-24 20:31:44,245 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:31:44,262 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2020-09-24 20:31:44,263 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=810, Unknown=0, NotChecked=0, Total=1190
[2020-09-24 20:31:44,266 INFO  L87              Difference]: Start difference. First operand 525 states. Second operand 35 states.
[2020-09-24 20:31:44,685 WARN  L193               SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80
[2020-09-24 20:31:44,887 WARN  L193               SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80
[2020-09-24 20:31:45,101 WARN  L193               SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88
[2020-09-24 20:31:45,368 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94
[2020-09-24 20:31:45,517 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46
[2020-09-24 20:31:45,808 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96
[2020-09-24 20:31:46,278 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98
[2020-09-24 20:31:46,748 WARN  L193               SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:47,114 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94
[2020-09-24 20:31:47,582 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94
[2020-09-24 20:31:47,993 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:48,506 WARN  L193               SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:49,109 WARN  L193               SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:49,615 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:49,826 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44
[2020-09-24 20:31:50,184 WARN  L193               SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:50,667 WARN  L193               SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:51,111 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:51,312 WARN  L193               SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:31:51,661 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88
[2020-09-24 20:31:51,944 WARN  L193               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 20:31:52,336 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99
[2020-09-24 20:31:52,759 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:31:53,095 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98
[2020-09-24 20:31:53,614 WARN  L193               SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80
[2020-09-24 20:31:53,970 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86
[2020-09-24 20:31:54,302 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98
[2020-09-24 20:31:54,486 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:31:54,939 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93
[2020-09-24 20:31:55,183 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86
[2020-09-24 20:31:55,374 WARN  L193               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:31:55,684 WARN  L193               SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:31:56,044 WARN  L193               SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90
[2020-09-24 20:31:56,575 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89
[2020-09-24 20:31:56,932 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:31:57,186 WARN  L193               SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49
[2020-09-24 20:31:57,529 WARN  L193               SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90
[2020-09-24 20:31:57,990 WARN  L193               SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:31:58,282 WARN  L193               SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88
[2020-09-24 20:31:58,591 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84
[2020-09-24 20:31:58,907 WARN  L193               SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85
[2020-09-24 20:31:59,415 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86
[2020-09-24 20:31:59,565 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2020-09-24 20:31:59,726 WARN  L193               SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:31:59,905 WARN  L193               SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 20:32:00,267 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2020-09-24 20:32:00,608 WARN  L193               SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2020-09-24 20:32:00,820 WARN  L193               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2020-09-24 20:32:01,159 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:01,455 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:01,759 WARN  L193               SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36
[2020-09-24 20:32:02,178 WARN  L193               SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:02,397 WARN  L193               SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:02,712 WARN  L193               SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 20:32:03,065 WARN  L193               SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:03,653 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:03,919 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84
[2020-09-24 20:32:04,114 WARN  L193               SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 20:32:04,546 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82
[2020-09-24 20:32:04,893 WARN  L193               SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:05,582 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91
[2020-09-24 20:32:05,858 WARN  L193               SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79
[2020-09-24 20:32:06,129 WARN  L193               SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77
[2020-09-24 20:32:06,335 WARN  L193               SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:06,566 WARN  L193               SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72
[2020-09-24 20:32:06,825 WARN  L193               SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73
[2020-09-24 20:32:07,037 WARN  L193               SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:07,347 WARN  L193               SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:07,701 WARN  L193               SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:08,067 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89
[2020-09-24 20:32:08,439 WARN  L193               SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89
[2020-09-24 20:32:08,670 WARN  L193               SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:08,946 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:09,376 WARN  L193               SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80
[2020-09-24 20:32:09,598 WARN  L193               SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41
[2020-09-24 20:32:09,853 WARN  L193               SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2020-09-24 20:32:10,113 WARN  L193               SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2020-09-24 20:32:10,486 WARN  L193               SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2020-09-24 20:32:10,711 WARN  L193               SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2020-09-24 20:32:10,983 WARN  L193               SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:32:11,197 WARN  L193               SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2020-09-24 20:32:11,531 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2020-09-24 20:32:11,933 WARN  L193               SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2020-09-24 20:32:13,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:32:13,528 INFO  L93              Difference]: Finished difference Result 1967 states and 2792 transitions.
[2020-09-24 20:32:13,529 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. 
[2020-09-24 20:32:13,530 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states. Word has length 130
[2020-09-24 20:32:13,531 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:32:13,562 INFO  L225             Difference]: With dead ends: 1967
[2020-09-24 20:32:13,562 INFO  L226             Difference]: Without dead ends: 1349
[2020-09-24 20:32:13,580 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7128 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=5030, Invalid=14992, Unknown=0, NotChecked=0, Total=20022
[2020-09-24 20:32:13,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1349 states.
[2020-09-24 20:32:13,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1147.
[2020-09-24 20:32:13,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1147 states.
[2020-09-24 20:32:13,718 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1395 transitions.
[2020-09-24 20:32:13,720 INFO  L78                 Accepts]: Start accepts. Automaton has 1147 states and 1395 transitions. Word has length 130
[2020-09-24 20:32:13,721 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:32:13,721 INFO  L479      AbstractCegarLoop]: Abstraction has 1147 states and 1395 transitions.
[2020-09-24 20:32:13,722 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 35 states.
[2020-09-24 20:32:13,722 INFO  L276                IsEmpty]: Start isEmpty. Operand 1147 states and 1395 transitions.
[2020-09-24 20:32:13,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-09-24 20:32:13,732 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:32:13,733 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-09-24 20:32:13,733 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:32:13,733 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:32:13,734 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:32:13,734 INFO  L82        PathProgramCache]: Analyzing trace with hash 2092263846, now seen corresponding path program 1 times
[2020-09-24 20:32:13,734 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:32:13,734 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097600050]
[2020-09-24 20:32:13,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:32:13,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:32:13,825 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:13,966 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:14,206 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:14,323 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:14,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:15,772 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:15,862 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:17,626 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:18,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:18,333 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:18,800 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:32:18,800 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 162
[2020-09-24 20:32:18,800 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 10
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5015
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 28
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 136
[2020-09-24 20:32:18,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:32:19,485 WARN  L193               SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40
[2020-09-24 20:32:19,706 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48
[2020-09-24 20:32:20,057 WARN  L193               SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50
[2020-09-24 20:32:20,350 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50
[2020-09-24 20:32:20,655 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50
[2020-09-24 20:32:20,929 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 42
[2020-09-24 20:32:21,193 WARN  L193               SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 41
[2020-09-24 20:32:21,535 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 39
[2020-09-24 20:32:21,829 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 39
[2020-09-24 20:32:22,111 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35
[2020-09-24 20:32:22,358 WARN  L193               SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30
[2020-09-24 20:32:22,516 WARN  L193               SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 26
[2020-09-24 20:32:22,693 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:32:22,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:32:22,707 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:22,739 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:32:22,739 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 20:32:22,739 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:32:22,739 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 37
[2020-09-24 20:32:22,740 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:32:22,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 20:32:22,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:32:22,740 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 20:32:22,741 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:32:22,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 20:32:22,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:32:22,813 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:22,856 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:32:22,873 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:32:22,874 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 20:32:22,874 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 20:32:22,874 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 63
[2020-09-24 20:32:22,874 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:32:22,874 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 20:32:22,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-09-24 20:32:22,875 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-24 20:32:22,875 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:32:23,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:32:23,128 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097600050]
[2020-09-24 20:32:23,128 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 20:32:23,128 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27
[2020-09-24 20:32:23,129 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909410931]
[2020-09-24 20:32:23,131 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 27 states
[2020-09-24 20:32:23,131 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:32:23,131 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2020-09-24 20:32:23,132 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=443, Unknown=0, NotChecked=0, Total=702
[2020-09-24 20:32:23,132 INFO  L87              Difference]: Start difference. First operand 1147 states and 1395 transitions. Second operand 27 states.
[2020-09-24 20:32:23,700 WARN  L193               SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 20:32:23,886 WARN  L193               SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112
[2020-09-24 20:32:24,351 WARN  L193               SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 116
[2020-09-24 20:32:24,661 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2020-09-24 20:32:25,015 WARN  L193               SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2020-09-24 20:32:25,352 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66
[2020-09-24 20:32:25,585 WARN  L193               SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2020-09-24 20:32:25,927 WARN  L193               SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64
[2020-09-24 20:32:26,329 WARN  L193               SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96
[2020-09-24 20:32:26,597 WARN  L193               SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65
[2020-09-24 20:32:26,814 WARN  L193               SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 99