/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:39:40,963 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:39:40,968 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:39:41,016 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:39:41,016 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:39:41,028 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:39:41,030 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-09-25 13:39:41,044 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:39:41,048 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:39:41,051 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:39:41,053 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:39:41,055 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:39:41,056 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:39:41,058 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:39:41,069 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:39:41,071 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:39:41,073 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:39:41,074 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:39:41,075 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:39:41,078 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:39:41,078 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:39:41,078 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:39:41,082 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:39:41,082 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-09-25 13:39:41,090 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-25 13:39:41,091 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-25 13:39:41,094 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:39:41,095 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 13:39:41,147 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 13:39:41,147 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:39:41,150 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:39:41,150 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 13:39:41,150 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 13:39:41,151 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:39:41,151 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 13:39:41,152 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 13:39:41,152 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 13:39:41,152 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 13:39:41,153 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:39:41,153 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:39:41,154 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:39:41,154 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 13:39:41,154 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 13:39:41,154 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 13:39:41,155 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:39:41,155 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:39:41,155 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 13:39:41,155 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 13:39:41,156 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 13:39:41,156 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:39:41,156 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:39:41,156 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:39:41,156 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:39:41,157 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 13:39:41,157 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:39:41,157 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:39:41,157 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 13:39:41,157 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:39:41,597 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:39:41,624 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:39:41,629 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:39:41,631 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 13:39:41,632 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 13:39:41,633 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c
[2020-09-25 13:39:41,718 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940/FLAG545dba37d
[2020-09-25 13:39:42,319 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 13:39:42,321 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c
[2020-09-25 13:39:42,336 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940/FLAG545dba37d
[2020-09-25 13:39:42,629 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/323d8ede2/0e02f80d37984058bdf0e1a5bf500940
[2020-09-25 13:39:42,642 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:39:42,647 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:39:42,648 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:39:42,648 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:39:42,653 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:39:42,654 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:42" (1/1) ...
[2020-09-25 13:39:42,658 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45241865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:42, skipping insertion in model container
[2020-09-25 13:39:42,659 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:39:42" (1/1) ...
[2020-09-25 13:39:42,666 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 13:39:42,705 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:39:42,964 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:39:42,971 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 13:39:43,014 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:39:43,033 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 13:39:43,033 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43 WrapperNode
[2020-09-25 13:39:43,034 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:39:43,035 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:39:43,035 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:39:43,035 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:39:43,134 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,136 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,148 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,149 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,157 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,163 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,166 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
[2020-09-25 13:39:43,169 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:39:43,170 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:39:43,170 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:39:43,170 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:39:43,172 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:39:43,254 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:39:43,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:39:43,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 13:39:43,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:39:43,255 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:39:43,255 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 13:39:43,256 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 13:39:43,257 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 13:39:43,257 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:39:43,257 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:39:43,257 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:39:43,257 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:39:43,844 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:39:43,845 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 13:39:43,853 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:43 BoogieIcfgContainer
[2020-09-25 13:39:43,853 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:39:43,855 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:39:43,855 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:39:43,859 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:39:43,860 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:39:42" (1/3) ...
[2020-09-25 13:39:43,861 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf1ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:43, skipping insertion in model container
[2020-09-25 13:39:43,861 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:39:43" (2/3) ...
[2020-09-25 13:39:43,862 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf1ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:39:43, skipping insertion in model container
[2020-09-25 13:39:43,862 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:39:43" (3/3) ...
[2020-09-25 13:39:43,865 INFO  L109   eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c
[2020-09-25 13:39:43,878 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:39:43,890 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations.
[2020-09-25 13:39:43,914 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 18 error locations.
[2020-09-25 13:39:43,971 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:39:43,972 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 13:39:43,972 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:39:43,972 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:39:43,972 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:39:43,972 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 13:39:43,973 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:39:43,973 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:39:44,003 INFO  L276                IsEmpty]: Start isEmpty. Operand 224 states.
[2020-09-25 13:39:44,014 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-09-25 13:39:44,014 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:44,015 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]
[2020-09-25 13:39:44,016 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:44,024 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:44,024 INFO  L82        PathProgramCache]: Analyzing trace with hash -2016263875, now seen corresponding path program 1 times
[2020-09-25 13:39:44,034 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:44,035 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582319607]
[2020-09-25 13:39:44,035 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:44,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:44,216 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:44,514 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:44,515 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 45
[2020-09-25 13:39:44,515 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:44,515 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 331
[2020-09-25 13:39:44,518 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:44,518 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:44,519 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:44,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:39:44,523 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 13:39:44,523 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 13:39:44,689 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:44,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:44,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:44,696 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:44,696 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:44,697 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:44,697 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:39:44,697 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:44,697 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:44,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:44,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:44,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:44,698 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:44,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:44,713 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582319607]
[2020-09-25 13:39:44,716 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:44,716 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:44,717 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757987980]
[2020-09-25 13:39:44,724 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:44,725 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:44,742 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:44,743 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:44,745 INFO  L87              Difference]: Start difference. First operand 224 states. Second operand 7 states.
[2020-09-25 13:39:45,570 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:45,571 INFO  L93              Difference]: Finished difference Result 290 states and 336 transitions.
[2020-09-25 13:39:45,571 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-25 13:39:45,573 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 38
[2020-09-25 13:39:45,574 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:45,590 INFO  L225             Difference]: With dead ends: 290
[2020-09-25 13:39:45,590 INFO  L226             Difference]: Without dead ends: 239
[2020-09-25 13:39:45,596 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272
[2020-09-25 13:39:45,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 239 states.
[2020-09-25 13:39:45,660 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 187.
[2020-09-25 13:39:45,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 187 states.
[2020-09-25 13:39:45,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 190 transitions.
[2020-09-25 13:39:45,667 INFO  L78                 Accepts]: Start accepts. Automaton has 187 states and 190 transitions. Word has length 38
[2020-09-25 13:39:45,668 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:45,668 INFO  L479      AbstractCegarLoop]: Abstraction has 187 states and 190 transitions.
[2020-09-25 13:39:45,668 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:45,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 187 states and 190 transitions.
[2020-09-25 13:39:45,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-09-25 13:39:45,670 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:45,670 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]
[2020-09-25 13:39:45,670 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:39:45,671 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:45,671 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:45,671 INFO  L82        PathProgramCache]: Analyzing trace with hash -1105206656, now seen corresponding path program 1 times
[2020-09-25 13:39:45,672 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:45,672 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391162087]
[2020-09-25 13:39:45,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:45,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:45,699 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:45,866 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:45,866 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 50
[2020-09-25 13:39:45,867 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:45,867 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 178
[2020-09-25 13:39:45,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:45,870 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:45,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 13:39:45,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 35
[2020-09-25 13:39:45,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 13:39:45,872 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:45,953 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:45,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:45,957 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:45,958 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:45,959 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:45,959 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:45,959 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:39:45,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:45,960 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:45,960 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:45,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:45,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:45,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:45,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:45,968 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391162087]
[2020-09-25 13:39:45,969 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:45,969 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 13:39:45,969 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272589523]
[2020-09-25 13:39:45,971 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:39:45,972 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:45,972 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:39:45,972 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:39:45,973 INFO  L87              Difference]: Start difference. First operand 187 states and 190 transitions. Second operand 8 states.
[2020-09-25 13:39:46,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:46,308 INFO  L93              Difference]: Finished difference Result 187 states and 190 transitions.
[2020-09-25 13:39:46,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-09-25 13:39:46,308 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 43
[2020-09-25 13:39:46,309 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:46,312 INFO  L225             Difference]: With dead ends: 187
[2020-09-25 13:39:46,313 INFO  L226             Difference]: Without dead ends: 185
[2020-09-25 13:39:46,318 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2020-09-25 13:39:46,320 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2020-09-25 13:39:46,345 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185.
[2020-09-25 13:39:46,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 185 states.
[2020-09-25 13:39:46,351 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 188 transitions.
[2020-09-25 13:39:46,352 INFO  L78                 Accepts]: Start accepts. Automaton has 185 states and 188 transitions. Word has length 43
[2020-09-25 13:39:46,353 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:46,353 INFO  L479      AbstractCegarLoop]: Abstraction has 185 states and 188 transitions.
[2020-09-25 13:39:46,354 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:39:46,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 185 states and 188 transitions.
[2020-09-25 13:39:46,357 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-09-25 13:39:46,357 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:46,358 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]
[2020-09-25 13:39:46,359 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:39:46,360 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:46,360 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:46,360 INFO  L82        PathProgramCache]: Analyzing trace with hash -1193283001, now seen corresponding path program 1 times
[2020-09-25 13:39:46,360 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:46,362 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919520431]
[2020-09-25 13:39:46,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:46,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:46,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:46,582 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:46,583 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 60
[2020-09-25 13:39:46,583 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:46,583 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 198
[2020-09-25 13:39:46,583 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:46,584 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:46,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:46,584 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:39:46,585 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-25 13:39:46,585 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:46,657 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:46,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:46,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:46,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:46,662 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:46,662 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:46,662 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:39:46,663 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:46,663 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:46,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:46,663 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:46,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:46,664 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:46,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:46,670 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919520431]
[2020-09-25 13:39:46,670 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:46,671 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:46,671 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796221451]
[2020-09-25 13:39:46,671 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:46,672 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:46,672 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:46,672 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:46,672 INFO  L87              Difference]: Start difference. First operand 185 states and 188 transitions. Second operand 7 states.
[2020-09-25 13:39:47,228 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:47,228 INFO  L93              Difference]: Finished difference Result 237 states and 242 transitions.
[2020-09-25 13:39:47,230 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 13:39:47,230 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 53
[2020-09-25 13:39:47,231 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:47,233 INFO  L225             Difference]: With dead ends: 237
[2020-09-25 13:39:47,233 INFO  L226             Difference]: Without dead ends: 235
[2020-09-25 13:39:47,234 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2020-09-25 13:39:47,235 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 235 states.
[2020-09-25 13:39:47,246 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 183.
[2020-09-25 13:39:47,246 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 183 states.
[2020-09-25 13:39:47,247 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 186 transitions.
[2020-09-25 13:39:47,247 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 186 transitions. Word has length 53
[2020-09-25 13:39:47,248 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:47,248 INFO  L479      AbstractCegarLoop]: Abstraction has 183 states and 186 transitions.
[2020-09-25 13:39:47,248 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:47,248 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 186 transitions.
[2020-09-25 13:39:47,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-09-25 13:39:47,249 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:47,250 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]
[2020-09-25 13:39:47,250 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:39:47,250 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:47,251 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:47,251 INFO  L82        PathProgramCache]: Analyzing trace with hash 1236242579, now seen corresponding path program 1 times
[2020-09-25 13:39:47,251 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:47,251 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331211356]
[2020-09-25 13:39:47,252 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:47,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:47,276 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:47,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:47,716 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:47,716 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 65
[2020-09-25 13:39:47,716 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:39:47,717 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 450
[2020-09-25 13:39:47,718 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:47,719 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:47,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:47,719 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 35
[2020-09-25 13:39:47,720 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 29
[2020-09-25 13:39:47,720 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 13:39:47,784 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:47,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:47,787 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:47,789 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:47,789 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:47,789 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:47,789 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:39:47,790 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:47,790 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:47,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:47,790 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:47,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:47,791 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:47,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:47,799 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331211356]
[2020-09-25 13:39:47,799 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:47,800 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:47,800 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126065268]
[2020-09-25 13:39:47,801 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:47,801 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:47,801 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:47,802 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:47,802 INFO  L87              Difference]: Start difference. First operand 183 states and 186 transitions. Second operand 7 states.
[2020-09-25 13:39:48,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:48,033 INFO  L93              Difference]: Finished difference Result 183 states and 186 transitions.
[2020-09-25 13:39:48,034 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 13:39:48,034 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 58
[2020-09-25 13:39:48,034 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:48,037 INFO  L225             Difference]: With dead ends: 183
[2020-09-25 13:39:48,037 INFO  L226             Difference]: Without dead ends: 181
[2020-09-25 13:39:48,038 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-09-25 13:39:48,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 181 states.
[2020-09-25 13:39:48,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181.
[2020-09-25 13:39:48,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 181 states.
[2020-09-25 13:39:48,062 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 184 transitions.
[2020-09-25 13:39:48,062 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 184 transitions. Word has length 58
[2020-09-25 13:39:48,062 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:48,063 INFO  L479      AbstractCegarLoop]: Abstraction has 181 states and 184 transitions.
[2020-09-25 13:39:48,064 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:48,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 184 transitions.
[2020-09-25 13:39:48,065 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2020-09-25 13:39:48,065 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:48,066 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]
[2020-09-25 13:39:48,066 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 13:39:48,066 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:48,067 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:48,067 INFO  L82        PathProgramCache]: Analyzing trace with hash -1703094031, now seen corresponding path program 1 times
[2020-09-25 13:39:48,067 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:48,067 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246636922]
[2020-09-25 13:39:48,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:48,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:48,100 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:48,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:48,391 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:48,525 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:48,526 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 71
[2020-09-25 13:39:48,526 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:39:48,526 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 438
[2020-09-25 13:39:48,526 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:48,527 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:48,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:48,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:39:48,527 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 33
[2020-09-25 13:39:48,527 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:48,600 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:48,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:48,604 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:48,605 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:48,605 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:48,606 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:48,606 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 13:39:48,606 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:48,606 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:48,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:48,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:48,607 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:48,607 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:48,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:48,616 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246636922]
[2020-09-25 13:39:48,616 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:48,616 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:48,616 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126672693]
[2020-09-25 13:39:48,618 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:48,618 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:48,619 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:48,619 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:48,619 INFO  L87              Difference]: Start difference. First operand 181 states and 184 transitions. Second operand 7 states.
[2020-09-25 13:39:49,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:49,283 INFO  L93              Difference]: Finished difference Result 305 states and 311 transitions.
[2020-09-25 13:39:49,284 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-09-25 13:39:49,284 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 64
[2020-09-25 13:39:49,284 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:49,287 INFO  L225             Difference]: With dead ends: 305
[2020-09-25 13:39:49,287 INFO  L226             Difference]: Without dead ends: 303
[2020-09-25 13:39:49,288 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210
[2020-09-25 13:39:49,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 303 states.
[2020-09-25 13:39:49,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 192.
[2020-09-25 13:39:49,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 192 states.
[2020-09-25 13:39:49,303 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 197 transitions.
[2020-09-25 13:39:49,303 INFO  L78                 Accepts]: Start accepts. Automaton has 192 states and 197 transitions. Word has length 64
[2020-09-25 13:39:49,304 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:49,304 INFO  L479      AbstractCegarLoop]: Abstraction has 192 states and 197 transitions.
[2020-09-25 13:39:49,304 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:49,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 192 states and 197 transitions.
[2020-09-25 13:39:49,307 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2020-09-25 13:39:49,307 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:49,307 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]
[2020-09-25 13:39:49,308 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 13:39:49,308 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:49,308 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:49,308 INFO  L82        PathProgramCache]: Analyzing trace with hash -1179531825, now seen corresponding path program 1 times
[2020-09-25 13:39:49,309 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:49,309 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1681582137]
[2020-09-25 13:39:49,309 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:49,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:49,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:49,387 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:49,841 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:49,842 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-25 13:39:49,842 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:39:49,842 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 511
[2020-09-25 13:39:49,843 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:49,843 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:49,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:49,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:39:49,844 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 38
[2020-09-25 13:39:49,844 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:49,953 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:49,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:49,955 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:49,957 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:49,957 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:49,958 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:49,958 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:39:49,958 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:49,958 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:49,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:49,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:49,959 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:49,960 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:49,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:49,970 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1681582137]
[2020-09-25 13:39:49,970 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:49,970 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:49,971 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685402020]
[2020-09-25 13:39:49,971 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:49,972 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:49,972 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:49,972 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:49,972 INFO  L87              Difference]: Start difference. First operand 192 states and 197 transitions. Second operand 7 states.
[2020-09-25 13:39:51,078 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:51,078 INFO  L93              Difference]: Finished difference Result 471 states and 480 transitions.
[2020-09-25 13:39:51,079 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 13:39:51,079 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 69
[2020-09-25 13:39:51,080 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:51,087 INFO  L225             Difference]: With dead ends: 471
[2020-09-25 13:39:51,088 INFO  L226             Difference]: Without dead ends: 469
[2020-09-25 13:39:51,090 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240
[2020-09-25 13:39:51,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 469 states.
[2020-09-25 13:39:51,104 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 197.
[2020-09-25 13:39:51,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 197 states.
[2020-09-25 13:39:51,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 202 transitions.
[2020-09-25 13:39:51,107 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 202 transitions. Word has length 69
[2020-09-25 13:39:51,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:51,109 INFO  L479      AbstractCegarLoop]: Abstraction has 197 states and 202 transitions.
[2020-09-25 13:39:51,109 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:51,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions.
[2020-09-25 13:39:51,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2020-09-25 13:39:51,119 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:51,119 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]
[2020-09-25 13:39:51,119 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 13:39:51,120 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:51,120 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:51,120 INFO  L82        PathProgramCache]: Analyzing trace with hash -1472635957, now seen corresponding path program 1 times
[2020-09-25 13:39:51,120 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:51,121 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008893003]
[2020-09-25 13:39:51,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:51,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:51,152 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:51,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:51,236 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:51,459 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:51,492 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:55,140 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:55,140 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 76
[2020-09-25 13:39:55,140 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-25 13:39:55,140 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3999
[2020-09-25 13:39:55,141 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:55,141 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:55,141 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:55,141 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 35
[2020-09-25 13:39:55,142 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 40
[2020-09-25 13:39:55,142 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:55,223 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:55,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:55,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:55,229 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:55,230 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:55,230 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:55,230 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 13:39:55,230 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:55,231 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:55,231 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:55,231 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:55,231 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:55,232 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:55,238 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:55,239 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008893003]
[2020-09-25 13:39:55,239 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:55,239 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:55,240 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267541718]
[2020-09-25 13:39:55,241 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:55,242 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:55,242 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:55,242 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:55,242 INFO  L87              Difference]: Start difference. First operand 197 states and 202 transitions. Second operand 7 states.
[2020-09-25 13:39:55,528 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:55,528 INFO  L93              Difference]: Finished difference Result 197 states and 202 transitions.
[2020-09-25 13:39:55,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 13:39:55,529 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 69
[2020-09-25 13:39:55,529 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:55,531 INFO  L225             Difference]: With dead ends: 197
[2020-09-25 13:39:55,531 INFO  L226             Difference]: Without dead ends: 195
[2020-09-25 13:39:55,532 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-09-25 13:39:55,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 195 states.
[2020-09-25 13:39:55,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195.
[2020-09-25 13:39:55,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 195 states.
[2020-09-25 13:39:55,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions.
[2020-09-25 13:39:55,543 INFO  L78                 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 69
[2020-09-25 13:39:55,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:55,544 INFO  L479      AbstractCegarLoop]: Abstraction has 195 states and 200 transitions.
[2020-09-25 13:39:55,544 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:55,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions.
[2020-09-25 13:39:55,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2020-09-25 13:39:55,546 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:55,546 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]
[2020-09-25 13:39:55,546 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 13:39:55,547 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:55,547 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:55,547 INFO  L82        PathProgramCache]: Analyzing trace with hash 645172388, now seen corresponding path program 1 times
[2020-09-25 13:39:55,547 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:55,548 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011210938]
[2020-09-25 13:39:55,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:55,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:55,570 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:55,599 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:55,631 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:57,205 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:57,206 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 81
[2020-09-25 13:39:57,206 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:39:57,207 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1645
[2020-09-25 13:39:57,207 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:57,208 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:57,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:39:57,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 35
[2020-09-25 13:39:57,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 45
[2020-09-25 13:39:57,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:57,283 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:57,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:57,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:57,287 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:57,287 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:57,287 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:57,288 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:39:57,288 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:57,288 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:57,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:57,288 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:57,289 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:57,289 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:57,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:57,297 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011210938]
[2020-09-25 13:39:57,298 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:57,298 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:39:57,298 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141751905]
[2020-09-25 13:39:57,299 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:39:57,299 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:57,299 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:39:57,300 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:39:57,300 INFO  L87              Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 7 states.
[2020-09-25 13:39:57,840 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:39:57,841 INFO  L93              Difference]: Finished difference Result 297 states and 303 transitions.
[2020-09-25 13:39:57,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-09-25 13:39:57,842 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 74
[2020-09-25 13:39:57,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:39:57,844 INFO  L225             Difference]: With dead ends: 297
[2020-09-25 13:39:57,845 INFO  L226             Difference]: Without dead ends: 295
[2020-09-25 13:39:57,846 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2020-09-25 13:39:57,847 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2020-09-25 13:39:57,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 193.
[2020-09-25 13:39:57,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 193 states.
[2020-09-25 13:39:57,858 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions.
[2020-09-25 13:39:57,858 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 74
[2020-09-25 13:39:57,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:39:57,859 INFO  L479      AbstractCegarLoop]: Abstraction has 193 states and 198 transitions.
[2020-09-25 13:39:57,859 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:39:57,859 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions.
[2020-09-25 13:39:57,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2020-09-25 13:39:57,866 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:39:57,867 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]
[2020-09-25 13:39:57,867 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 13:39:57,867 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:39:57,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:39:57,868 INFO  L82        PathProgramCache]: Analyzing trace with hash -2127372300, now seen corresponding path program 1 times
[2020-09-25 13:39:57,869 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:39:57,869 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311304784]
[2020-09-25 13:39:57,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:39:57,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:57,908 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:57,947 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:57,983 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:58,071 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:59,668 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:59,669 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 82
[2020-09-25 13:39:59,669 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 13:39:59,669 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1771
[2020-09-25 13:39:59,669 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:59,670 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:59,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 13:39:59,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:39:59,670 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 44
[2020-09-25 13:39:59,671 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:59,760 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:39:59,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:39:59,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:39:59,764 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:39:59,764 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:39:59,765 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:39:59,765 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:39:59,765 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:39:59,765 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:39:59,765 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:39:59,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:39:59,766 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:39:59,766 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:39:59,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:39:59,777 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311304784]
[2020-09-25 13:39:59,777 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:39:59,778 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 13:39:59,778 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905981434]
[2020-09-25 13:39:59,778 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:39:59,779 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:39:59,779 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:39:59,779 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:39:59,779 INFO  L87              Difference]: Start difference. First operand 193 states and 198 transitions. Second operand 8 states.
[2020-09-25 13:40:00,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:00,254 INFO  L93              Difference]: Finished difference Result 204 states and 209 transitions.
[2020-09-25 13:40:00,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 13:40:00,255 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 75
[2020-09-25 13:40:00,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:00,256 INFO  L225             Difference]: With dead ends: 204
[2020-09-25 13:40:00,257 INFO  L226             Difference]: Without dead ends: 202
[2020-09-25 13:40:00,257 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182
[2020-09-25 13:40:00,258 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-09-25 13:40:00,263 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191.
[2020-09-25 13:40:00,264 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 191 states.
[2020-09-25 13:40:00,265 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 196 transitions.
[2020-09-25 13:40:00,265 INFO  L78                 Accepts]: Start accepts. Automaton has 191 states and 196 transitions. Word has length 75
[2020-09-25 13:40:00,265 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:00,265 INFO  L479      AbstractCegarLoop]: Abstraction has 191 states and 196 transitions.
[2020-09-25 13:40:00,265 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:40:00,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 191 states and 196 transitions.
[2020-09-25 13:40:00,266 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2020-09-25 13:40:00,267 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:00,267 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]
[2020-09-25 13:40:00,267 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-25 13:40:00,267 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:00,268 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:00,268 INFO  L82        PathProgramCache]: Analyzing trace with hash 2079623045, now seen corresponding path program 1 times
[2020-09-25 13:40:00,268 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:00,268 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509053120]
[2020-09-25 13:40:00,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:00,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:00,289 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:00,327 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:00,348 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:00,369 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:00,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:00,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:01,936 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:05,279 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:05,280 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 87
[2020-09-25 13:40:05,280 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 7
[2020-09-25 13:40:05,280 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 13:40:05,281 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:05,281 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:05,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:40:05,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 33
[2020-09-25 13:40:05,281 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 53
[2020-09-25 13:40:05,282 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:40:05,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:05,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:05,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:05,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:05,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:05,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:05,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:40:05,344 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:05,344 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:05,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:05,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:05,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:05,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:40:05,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:40:05,357 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509053120]
[2020-09-25 13:40:05,357 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:40:05,357 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:40:05,358 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421072629]
[2020-09-25 13:40:05,358 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:40:05,359 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:05,359 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:40:05,359 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:40:05,359 INFO  L87              Difference]: Start difference. First operand 191 states and 196 transitions. Second operand 7 states.
[2020-09-25 13:40:05,929 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:05,929 INFO  L93              Difference]: Finished difference Result 288 states and 294 transitions.
[2020-09-25 13:40:05,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 13:40:05,929 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 80
[2020-09-25 13:40:05,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:05,931 INFO  L225             Difference]: With dead ends: 288
[2020-09-25 13:40:05,931 INFO  L226             Difference]: Without dead ends: 286
[2020-09-25 13:40:05,932 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-09-25 13:40:05,933 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2020-09-25 13:40:05,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 212.
[2020-09-25 13:40:05,940 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 212 states.
[2020-09-25 13:40:05,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 217 transitions.
[2020-09-25 13:40:05,941 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 217 transitions. Word has length 80
[2020-09-25 13:40:05,941 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:05,942 INFO  L479      AbstractCegarLoop]: Abstraction has 212 states and 217 transitions.
[2020-09-25 13:40:05,942 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:40:05,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 217 transitions.
[2020-09-25 13:40:05,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 86
[2020-09-25 13:40:05,943 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:05,943 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]
[2020-09-25 13:40:05,943 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2020-09-25 13:40:05,944 INFO  L427      AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:05,944 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:05,944 INFO  L82        PathProgramCache]: Analyzing trace with hash -111708917, now seen corresponding path program 1 times
[2020-09-25 13:40:05,944 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:05,945 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088797653]
[2020-09-25 13:40:05,945 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:05,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:05,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:05,991 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:06,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:06,292 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:10,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:10,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 92
[2020-09-25 13:40:10,960 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 13:40:10,960 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5003
[2020-09-25 13:40:10,960 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:10,961 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:10,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 13:40:10,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 35
[2020-09-25 13:40:10,961 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-25 13:40:10,961 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:11,009 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:11,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:11,011 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:11,012 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:11,012 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:11,013 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:11,013 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:40:11,013 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:11,013 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:11,013 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:11,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:11,014 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:11,014 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:40:11,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:40:11,023 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088797653]
[2020-09-25 13:40:11,023 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:40:11,023 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-25 13:40:11,024 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320279636]
[2020-09-25 13:40:11,024 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 13:40:11,024 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:11,025 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 13:40:11,025 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-25 13:40:11,025 INFO  L87              Difference]: Start difference. First operand 212 states and 217 transitions. Second operand 7 states.
[2020-09-25 13:40:11,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:11,367 INFO  L93              Difference]: Finished difference Result 212 states and 217 transitions.
[2020-09-25 13:40:11,368 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 13:40:11,368 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 85
[2020-09-25 13:40:11,369 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:11,370 INFO  L225             Difference]: With dead ends: 212
[2020-09-25 13:40:11,371 INFO  L226             Difference]: Without dead ends: 210
[2020-09-25 13:40:11,372 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-09-25 13:40:11,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2020-09-25 13:40:11,382 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 189.
[2020-09-25 13:40:11,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 189 states.
[2020-09-25 13:40:11,384 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions.
[2020-09-25 13:40:11,384 INFO  L78                 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 85
[2020-09-25 13:40:11,384 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:11,385 INFO  L479      AbstractCegarLoop]: Abstraction has 189 states and 194 transitions.
[2020-09-25 13:40:11,385 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 13:40:11,385 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions.
[2020-09-25 13:40:11,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2020-09-25 13:40:11,387 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:11,387 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:40:11,387 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-09-25 13:40:11,388 INFO  L427      AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:11,388 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:11,388 INFO  L82        PathProgramCache]: Analyzing trace with hash 462594596, now seen corresponding path program 1 times
[2020-09-25 13:40:11,389 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:11,389 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837826759]
[2020-09-25 13:40:11,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:11,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:11,424 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:11,457 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:11,622 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:13,562 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2151
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 13:40:13,563 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:40:13,564 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-09-25 13:40:13,564 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:13,658 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:13,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:13,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:13,662 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:13,663 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:13,663 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:13,663 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:40:13,664 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:13,664 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:13,664 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:13,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:13,665 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:13,665 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:40:13,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 13:40:13,687 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837826759]
[2020-09-25 13:40:13,688 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 13:40:13,688 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 13:40:13,688 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453266378]
[2020-09-25 13:40:13,689 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:40:13,689 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:13,690 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:40:13,690 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:40:13,690 INFO  L87              Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 8 states.
[2020-09-25 13:40:14,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:14,530 INFO  L93              Difference]: Finished difference Result 301 states and 307 transitions.
[2020-09-25 13:40:14,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 13:40:14,531 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 86
[2020-09-25 13:40:14,531 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:14,533 INFO  L225             Difference]: With dead ends: 301
[2020-09-25 13:40:14,533 INFO  L226             Difference]: Without dead ends: 299
[2020-09-25 13:40:14,534 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210
[2020-09-25 13:40:14,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 299 states.
[2020-09-25 13:40:14,542 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 182.
[2020-09-25 13:40:14,542 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 182 states.
[2020-09-25 13:40:14,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 187 transitions.
[2020-09-25 13:40:14,543 INFO  L78                 Accepts]: Start accepts. Automaton has 182 states and 187 transitions. Word has length 86
[2020-09-25 13:40:14,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:14,544 INFO  L479      AbstractCegarLoop]: Abstraction has 182 states and 187 transitions.
[2020-09-25 13:40:14,544 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:40:14,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 182 states and 187 transitions.
[2020-09-25 13:40:14,545 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2020-09-25 13:40:14,545 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:14,545 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]
[2020-09-25 13:40:14,545 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2020-09-25 13:40:14,546 INFO  L427      AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:14,546 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:14,546 INFO  L82        PathProgramCache]: Analyzing trace with hash -748130612, now seen corresponding path program 1 times
[2020-09-25 13:40:14,546 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:14,547 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193090613]
[2020-09-25 13:40:14,547 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:14,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:14,573 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:14,604 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:14,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:16,645 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2083
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:40:16,646 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 55
[2020-09-25 13:40:16,647 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:16,753 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:16,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:16,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:16,757 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:16,757 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:16,757 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:16,757 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:40:16,758 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:16,758 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:16,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:16,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:16,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:16,759 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:40:16,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 13:40:16,773 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193090613]
[2020-09-25 13:40:16,774 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 13:40:16,774 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2020-09-25 13:40:16,774 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905857903]
[2020-09-25 13:40:16,775 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:40:16,775 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:16,776 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:40:16,776 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:40:16,776 INFO  L87              Difference]: Start difference. First operand 182 states and 187 transitions. Second operand 8 states.
[2020-09-25 13:40:17,199 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:17,199 INFO  L93              Difference]: Finished difference Result 193 states and 198 transitions.
[2020-09-25 13:40:17,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-25 13:40:17,200 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 86
[2020-09-25 13:40:17,200 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:17,201 INFO  L225             Difference]: With dead ends: 193
[2020-09-25 13:40:17,202 INFO  L226             Difference]: Without dead ends: 191
[2020-09-25 13:40:17,202 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210
[2020-09-25 13:40:17,203 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 191 states.
[2020-09-25 13:40:17,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 169.
[2020-09-25 13:40:17,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 169 states.
[2020-09-25 13:40:17,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 172 transitions.
[2020-09-25 13:40:17,209 INFO  L78                 Accepts]: Start accepts. Automaton has 169 states and 172 transitions. Word has length 86
[2020-09-25 13:40:17,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:17,209 INFO  L479      AbstractCegarLoop]: Abstraction has 169 states and 172 transitions.
[2020-09-25 13:40:17,210 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:40:17,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 169 states and 172 transitions.
[2020-09-25 13:40:17,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2020-09-25 13:40:17,211 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:17,211 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]
[2020-09-25 13:40:17,211 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2020-09-25 13:40:17,211 INFO  L427      AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:17,212 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:17,212 INFO  L82        PathProgramCache]: Analyzing trace with hash 1581381328, now seen corresponding path program 1 times
[2020-09-25 13:40:17,212 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:17,212 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101505976]
[2020-09-25 13:40:17,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:17,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:17,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:17,258 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:17,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:17,499 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:17,530 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:17,583 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:22,223 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:22,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 101
[2020-09-25 13:40:22,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 13:40:22,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 13:40:22,224 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:22,224 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:22,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 13:40:22,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 37
[2020-09-25 13:40:22,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 63
[2020-09-25 13:40:22,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:22,312 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:22,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:22,314 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:22,315 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:22,315 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:22,315 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:22,315 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 13:40:22,316 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:22,316 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:22,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:22,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:22,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:22,317 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:22,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:40:22,330 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101505976]
[2020-09-25 13:40:22,330 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:40:22,330 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 13:40:22,331 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103834330]
[2020-09-25 13:40:22,331 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:40:22,331 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:22,331 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:40:22,332 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:40:22,332 INFO  L87              Difference]: Start difference. First operand 169 states and 172 transitions. Second operand 8 states.
[2020-09-25 13:40:22,801 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:22,801 INFO  L93              Difference]: Finished difference Result 180 states and 183 transitions.
[2020-09-25 13:40:22,802 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 13:40:22,802 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 94
[2020-09-25 13:40:22,802 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:22,804 INFO  L225             Difference]: With dead ends: 180
[2020-09-25 13:40:22,804 INFO  L226             Difference]: Without dead ends: 178
[2020-09-25 13:40:22,805 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2020-09-25 13:40:22,806 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2020-09-25 13:40:22,811 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 167.
[2020-09-25 13:40:22,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 167 states.
[2020-09-25 13:40:22,812 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 170 transitions.
[2020-09-25 13:40:22,812 INFO  L78                 Accepts]: Start accepts. Automaton has 167 states and 170 transitions. Word has length 94
[2020-09-25 13:40:22,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:22,813 INFO  L479      AbstractCegarLoop]: Abstraction has 167 states and 170 transitions.
[2020-09-25 13:40:22,813 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:40:22,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 167 states and 170 transitions.
[2020-09-25 13:40:22,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2020-09-25 13:40:22,814 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:22,814 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]
[2020-09-25 13:40:22,814 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2020-09-25 13:40:22,817 INFO  L427      AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:22,817 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:22,817 INFO  L82        PathProgramCache]: Analyzing trace with hash 1952981262, now seen corresponding path program 1 times
[2020-09-25 13:40:22,817 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:22,818 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586986923]
[2020-09-25 13:40:22,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:22,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:22,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:22,871 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:23,042 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:23,072 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:23,098 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:23,124 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:23,161 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:24,509 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:27,838 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:27,838 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 106
[2020-09-25 13:40:27,838 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-25 13:40:27,838 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5004
[2020-09-25 13:40:27,838 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:27,839 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:27,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 13:40:27,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 33
[2020-09-25 13:40:27,839 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 72
[2020-09-25 13:40:27,839 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:27,899 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:40:27,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:27,901 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:27,902 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:40:27,902 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 13:40:27,902 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:40:27,902 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 13:40:27,903 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:40:27,903 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:40:27,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:40:27,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:40:27,903 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:40:27,904 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 13:40:27,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:40:27,914 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586986923]
[2020-09-25 13:40:27,914 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:40:27,914 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 13:40:27,914 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774707191]
[2020-09-25 13:40:27,915 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:40:27,915 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:40:27,915 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:40:27,915 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:40:27,916 INFO  L87              Difference]: Start difference. First operand 167 states and 170 transitions. Second operand 8 states.
[2020-09-25 13:40:28,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:40:28,549 INFO  L93              Difference]: Finished difference Result 260 states and 264 transitions.
[2020-09-25 13:40:28,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-25 13:40:28,550 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 99
[2020-09-25 13:40:28,551 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:40:28,553 INFO  L225             Difference]: With dead ends: 260
[2020-09-25 13:40:28,553 INFO  L226             Difference]: Without dead ends: 258
[2020-09-25 13:40:28,553 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2020-09-25 13:40:28,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 258 states.
[2020-09-25 13:40:28,561 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207.
[2020-09-25 13:40:28,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 207 states.
[2020-09-25 13:40:28,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 210 transitions.
[2020-09-25 13:40:28,563 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 210 transitions. Word has length 99
[2020-09-25 13:40:28,563 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:40:28,563 INFO  L479      AbstractCegarLoop]: Abstraction has 207 states and 210 transitions.
[2020-09-25 13:40:28,563 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:40:28,563 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 210 transitions.
[2020-09-25 13:40:28,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2020-09-25 13:40:28,564 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 13:40:28,565 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]
[2020-09-25 13:40:28,565 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2020-09-25 13:40:28,565 INFO  L427      AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:40:28,566 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:40:28,566 INFO  L82        PathProgramCache]: Analyzing trace with hash -101561912, now seen corresponding path program 1 times
[2020-09-25 13:40:28,566 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:40:28,566 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690009493]
[2020-09-25 13:40:28,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:40:28,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:40:28,593 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:28,634 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:28,696 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:28,718 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:40:28,927 FATAL L256   erpolLogProxyWrapper]: Now shrinking...