/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:29:27,065 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:29:27,069 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:29:27,099 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:29:27,100 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:29:27,101 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:29:27,102 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:29:27,104 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:29:27,105 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:29:27,106 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:29:27,107 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:29:27,108 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:29:27,108 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:29:27,109 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:29:27,111 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:29:27,112 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:29:27,112 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:29:27,113 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:29:27,115 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:29:27,117 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:29:27,118 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:29:27,119 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:29:27,121 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:29:27,121 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:29:27,124 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:29:27,124 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:29:27,124 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:29:27,125 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:29:27,126 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:29:27,126 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:29:27,127 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:29:27,127 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:29:27,128 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:29:27,129 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:29:27,130 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:29:27,130 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:29:27,131 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:29:27,131 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:29:27,131 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:29:27,132 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:29:27,133 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:29:27,134 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 22:29:27,169 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 22:29:27,170 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:29:27,171 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:29:27,171 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 22:29:27,171 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 22:29:27,172 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:29:27,172 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 22:29:27,172 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 22:29:27,172 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 22:29:27,172 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 22:29:27,173 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:29:27,173 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:29:27,173 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:29:27,173 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 22:29:27,173 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 22:29:27,174 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 22:29:27,179 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:29:27,179 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:29:27,179 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 22:29:27,180 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 22:29:27,180 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 22:29:27,180 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:29:27,180 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:29:27,180 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:29:27,181 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:29:27,181 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 22:29:27,181 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:29:27,181 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:29:27,181 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 22:29:27,181 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true;
[2020-09-24 22:29:27,626 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:29:27,645 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:29:27,649 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:29:27,650 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 22:29:27,651 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 22:29:27,652 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c
[2020-09-24 22:29:27,738 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ad184b7f/563164d555ca47c8a69418fa0b1a5779/FLAGbfe2b0039
[2020-09-24 22:29:28,329 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 22:29:28,330 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c
[2020-09-24 22:29:28,345 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ad184b7f/563164d555ca47c8a69418fa0b1a5779/FLAGbfe2b0039
[2020-09-24 22:29:28,627 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ad184b7f/563164d555ca47c8a69418fa0b1a5779
[2020-09-24 22:29:28,642 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:29:28,648 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:29:28,649 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:29:28,650 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:29:28,654 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:29:28,655 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:28" (1/1) ...
[2020-09-24 22:29:28,659 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1911956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:28, skipping insertion in model container
[2020-09-24 22:29:28,659 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:29:28" (1/1) ...
[2020-09-24 22:29:28,668 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 22:29:28,748 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:29:29,254 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:29:29,276 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 22:29:29,355 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:29:29,390 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 22:29:29,391 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29 WrapperNode
[2020-09-24 22:29:29,391 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:29:29,392 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:29:29,392 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:29:29,392 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:29:29,408 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,408 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,428 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,429 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,460 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,471 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,476 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
[2020-09-24 22:29:29,484 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:29:29,485 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:29:29,485 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:29:29,485 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:29:29,487 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:29:29,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:29:29,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:29:29,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 22:29:29,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 22:29:29,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 22:29:29,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 22:29:29,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 22:29:29,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:29:29,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 22:29:29,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 22:29:29,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 22:29:29,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 22:29:29,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 22:29:29,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 22:29:29,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 22:29:29,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 22:29:29,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 22:29:29,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 22:29:29,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 22:29:29,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 22:29:29,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 22:29:29,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 22:29:29,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 22:29:29,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 22:29:29,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 22:29:29,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 22:29:29,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 22:29:29,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 22:29:29,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:29:29,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 22:29:29,582 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 22:29:29,582 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 22:29:29,583 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 22:29:29,583 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 22:29:29,583 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 22:29:29,583 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 22:29:29,583 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 22:29:29,584 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 22:29:29,584 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 22:29:29,584 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 22:29:29,584 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 22:29:29,584 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 22:29:29,585 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 22:29:29,586 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 22:29:29,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 22:29:29,588 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 22:29:29,589 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:29:29,590 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 22:29:29,591 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:29:30,831 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:29:30,831 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 22:29:30,838 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:30 BoogieIcfgContainer
[2020-09-24 22:29:30,838 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:29:30,840 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:29:30,840 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:29:30,844 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:29:30,844 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:29:28" (1/3) ...
[2020-09-24 22:29:30,845 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609c23f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:30, skipping insertion in model container
[2020-09-24 22:29:30,845 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:29:29" (2/3) ...
[2020-09-24 22:29:30,845 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609c23f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:29:30, skipping insertion in model container
[2020-09-24 22:29:30,846 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:29:30" (3/3) ...
[2020-09-24 22:29:30,848 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c
[2020-09-24 22:29:30,859 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:29:30,871 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:29:30,893 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:29:30,926 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:29:30,926 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 22:29:30,927 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:29:30,927 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:29:30,927 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:29:30,927 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 22:29:30,927 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:29:30,927 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:29:30,956 INFO  L276                IsEmpty]: Start isEmpty. Operand 315 states.
[2020-09-24 22:29:30,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 22:29:30,975 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:30,977 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:29:30,978 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:30,985 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:30,986 INFO  L82        PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times
[2020-09-24 22:29:30,997 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:30,997 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286460119]
[2020-09-24 22:29:30,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:31,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:31,533 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:31,703 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:33,346 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:36,361 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:36,361 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 22:29:36,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:29:36,362 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-24 22:29:36,365 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:36,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:36,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 22:29:36,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:36,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 22:29:36,839 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:36,842 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:36,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:36,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,008 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,010 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:37,011 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,011 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 135
[2020-09-24 22:29:37,011 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,011 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:37,012 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,012 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,089 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:37,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,093 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,094 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,095 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:37,095 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,095 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:37,095 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:37,096 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,096 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,102 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:37,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,106 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,107 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:37,107 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,107 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:37,107 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:37,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,108 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,110 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:37,111 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,113 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,117 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,117 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:37,117 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,118 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:29:37,118 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,118 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:37,119 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,119 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,120 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:37,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,128 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,128 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:37,128 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,129 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:29:37,129 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:37,129 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,130 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,131 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 22:29:37,132 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,136 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,136 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:37,136 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,137 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:37,137 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:37,137 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,138 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,140 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 22:29:37,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,145 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,147 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,148 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:37,148 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,148 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:37,148 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:37,149 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,149 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:37,152 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 22:29:37,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:37,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:37,160 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:37,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:37,161 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:37,161 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:29:37,161 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:37,161 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:37,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:37,162 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:37,162 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:37,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:37,196 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286460119]
[2020-09-24 22:29:37,198 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:37,198 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 22:29:37,199 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941263981]
[2020-09-24 22:29:37,208 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 22:29:37,208 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:37,225 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 22:29:37,226 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 22:29:37,229 INFO  L87              Difference]: Start difference. First operand 315 states. Second operand 3 states.
[2020-09-24 22:29:38,604 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:38,604 INFO  L93              Difference]: Finished difference Result 497 states and 588 transitions.
[2020-09-24 22:29:38,605 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 22:29:38,607 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 22:29:38,608 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:38,627 INFO  L225             Difference]: With dead ends: 497
[2020-09-24 22:29:38,628 INFO  L226             Difference]: Without dead ends: 307
[2020-09-24 22:29:38,634 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 22:29:38,657 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 307 states.
[2020-09-24 22:29:38,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264.
[2020-09-24 22:29:38,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 264 states.
[2020-09-24 22:29:38,762 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions.
[2020-09-24 22:29:38,765 INFO  L78                 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153
[2020-09-24 22:29:38,766 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:38,767 INFO  L479      AbstractCegarLoop]: Abstraction has 264 states and 286 transitions.
[2020-09-24 22:29:38,767 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 22:29:38,767 INFO  L276                IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions.
[2020-09-24 22:29:38,782 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 22:29:38,782 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:38,783 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:29:38,783 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:29:38,783 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:38,784 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:38,785 INFO  L82        PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times
[2020-09-24 22:29:38,785 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:38,785 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514336907]
[2020-09-24 22:29:38,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:38,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:38,933 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:39,053 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:40,646 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:43,896 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:43,897 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 22:29:43,897 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:29:43,897 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5016
[2020-09-24 22:29:43,898 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:43,898 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:43,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 22:29:43,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 22:29:43,899 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:44,175 WARN  L193               SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:44,177 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:44,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,204 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,289 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:44,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,291 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-24 22:29:44,291 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:44,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,292 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:44,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,326 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,327 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:44,327 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,327 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:44,327 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,327 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:44,328 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,328 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,331 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:44,331 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,332 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,334 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:44,334 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:29:44,334 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:44,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,337 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:44,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,343 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,344 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:44,344 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,344 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:29:44,344 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:44,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,345 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,347 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:44,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,349 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,350 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,350 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:44,350 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,351 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:29:44,351 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:44,351 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,352 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,352 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 22:29:44,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,356 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,358 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:44,359 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,359 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:44,359 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,359 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:44,360 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,360 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:44,362 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 22:29:44,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,364 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,366 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,367 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:44,367 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:44,367 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:44,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,369 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:44,370 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 22:29:44,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:44,372 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:44,374 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:44,374 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:44,374 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:44,374 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:44,375 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:44,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:44,375 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:44,376 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:44,376 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:44,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:44,409 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514336907]
[2020-09-24 22:29:44,409 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:44,410 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 22:29:44,410 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071321637]
[2020-09-24 22:29:44,413 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 22:29:44,413 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:44,413 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 22:29:44,414 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 22:29:44,414 INFO  L87              Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states.
[2020-09-24 22:29:45,066 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 22:29:46,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:46,034 INFO  L93              Difference]: Finished difference Result 405 states and 453 transitions.
[2020-09-24 22:29:46,034 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 22:29:46,034 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-24 22:29:46,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:46,040 INFO  L225             Difference]: With dead ends: 405
[2020-09-24 22:29:46,041 INFO  L226             Difference]: Without dead ends: 290
[2020-09-24 22:29:46,043 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 22:29:46,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2020-09-24 22:29:46,086 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254.
[2020-09-24 22:29:46,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 254 states.
[2020-09-24 22:29:46,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions.
[2020-09-24 22:29:46,088 INFO  L78                 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154
[2020-09-24 22:29:46,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:46,089 INFO  L479      AbstractCegarLoop]: Abstraction has 254 states and 273 transitions.
[2020-09-24 22:29:46,089 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 22:29:46,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions.
[2020-09-24 22:29:46,092 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-24 22:29:46,092 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:46,092 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:29:46,092 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:29:46,093 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:46,093 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:46,093 INFO  L82        PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times
[2020-09-24 22:29:46,093 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:46,094 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557946025]
[2020-09-24 22:29:46,094 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:46,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:46,195 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:47,067 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,084 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,085 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-24 22:29:50,085 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 22:29:50,085 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3941
[2020-09-24 22:29:50,085 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 22:29:50,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 22:29:50,086 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 97
[2020-09-24 22:29:50,086 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,468 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:50,469 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:50,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,549 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,743 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:50,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,744 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 231
[2020-09-24 22:29:50,744 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 22:29:50,745 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,783 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:50,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,785 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,787 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,787 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:50,787 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,788 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:50,788 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:50,789 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,790 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:50,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,793 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,794 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:50,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:50,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:50,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,796 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:50,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,799 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,803 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,804 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:50,804 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,804 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:29:50,804 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,804 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,805 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:50,805 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,807 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:50,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,811 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,811 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:50,811 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,811 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:50,812 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,812 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:50,812 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,814 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 22:29:50,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,816 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,818 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,818 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:50,819 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,819 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:50,819 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,819 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:50,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,820 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:50,820 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,822 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 22:29:50,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,824 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,831 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,831 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:50,832 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,832 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:29:50,832 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,832 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 22:29:50,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:50,833 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:50,833 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,860 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2020-09-24 22:29:50,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:50,862 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:50,863 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:50,864 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:50,864 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:50,864 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:50,864 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:50,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:50,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:50,865 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:50,865 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:50,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:50,900 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557946025]
[2020-09-24 22:29:50,900 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:50,900 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 22:29:50,900 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865821147]
[2020-09-24 22:29:50,901 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 22:29:50,901 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:50,902 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 22:29:50,902 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 22:29:50,902 INFO  L87              Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 8 states.
[2020-09-24 22:29:51,340 WARN  L193               SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:29:52,975 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:53,306 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:29:53,643 WARN  L193               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:53,983 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:29:54,291 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:29:54,625 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:54,923 WARN  L193               SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:55,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:55,778 INFO  L93              Difference]: Finished difference Result 569 states and 655 transitions.
[2020-09-24 22:29:55,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 22:29:55,779 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 163
[2020-09-24 22:29:55,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:55,784 INFO  L225             Difference]: With dead ends: 569
[2020-09-24 22:29:55,784 INFO  L226             Difference]: Without dead ends: 425
[2020-09-24 22:29:55,786 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 22:29:55,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 425 states.
[2020-09-24 22:29:55,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 390.
[2020-09-24 22:29:55,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2020-09-24 22:29:55,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 431 transitions.
[2020-09-24 22:29:55,845 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 431 transitions. Word has length 163
[2020-09-24 22:29:55,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:55,846 INFO  L479      AbstractCegarLoop]: Abstraction has 390 states and 431 transitions.
[2020-09-24 22:29:55,846 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 22:29:55,846 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 431 transitions.
[2020-09-24 22:29:55,849 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 22:29:55,849 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:55,849 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:29:55,850 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 22:29:55,850 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:55,850 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:55,850 INFO  L82        PathProgramCache]: Analyzing trace with hash -930453980, now seen corresponding path program 1 times
[2020-09-24 22:29:55,850 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:55,851 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429362754]
[2020-09-24 22:29:55,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:55,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:55,947 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:56,062 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:58,611 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:59,126 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:00,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:00,899 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 22:30:00,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:30:00,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-24 22:30:00,900 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:00,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:30:00,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-24 22:30:00,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 51
[2020-09-24 22:30:00,901 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,207 WARN  L193               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:30:01,208 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:30:01,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,224 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,308 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,308 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:30:01,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,309 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-09-24 22:30:01,309 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:01,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,309 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:01,310 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,339 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:30:01,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,341 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,342 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:01,342 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,342 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:30:01,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:01,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:01,343 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,344 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:30:01,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,348 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,348 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:01,348 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,349 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:30:01,349 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:01,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,349 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:01,350 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,351 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:30:01,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,353 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,356 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,357 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:01,357 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,357 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:30:01,357 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:01,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,358 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:01,358 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,359 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:30:01,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,361 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,362 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,362 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:01,362 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,363 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:30:01,363 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:01,363 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,364 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:01,364 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,376 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2020-09-24 22:30:01,378 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,385 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,385 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:30:01,386 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,386 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:30:01,386 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,386 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:01,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,387 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:30:01,387 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,389 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 22:30:01,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,392 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,394 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,394 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:01,395 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,395 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:30:01,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:01,395 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:30:01,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,397 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 22:30:01,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,400 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,402 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,402 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:01,403 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,403 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:30:01,403 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:01,403 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,404 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:30:01,404 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,405 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 22:30:01,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:01,408 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:01,414 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:01,414 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:01,414 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:01,414 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:30:01,415 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:01,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 22:30:01,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:01,415 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:30:01,415 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:01,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:30:01,535 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429362754]
[2020-09-24 22:30:01,535 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:30:01,536 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 22:30:01,536 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305992619]
[2020-09-24 22:30:01,536 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 22:30:01,537 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:30:01,537 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 22:30:01,538 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 22:30:01,539 INFO  L87              Difference]: Start difference. First operand 390 states and 431 transitions. Second operand 9 states.
[2020-09-24 22:30:02,590 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 22:30:02,896 WARN  L193               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 199
[2020-09-24 22:30:03,718 WARN  L193               SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 201
[2020-09-24 22:30:04,866 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 22:30:05,186 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 22:30:05,632 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:30:06,013 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 22:30:06,324 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:30:06,634 WARN  L193               SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:30:07,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:30:07,379 INFO  L93              Difference]: Finished difference Result 880 states and 1030 transitions.
[2020-09-24 22:30:07,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-09-24 22:30:07,380 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 168
[2020-09-24 22:30:07,381 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:30:07,386 INFO  L225             Difference]: With dead ends: 880
[2020-09-24 22:30:07,386 INFO  L226             Difference]: Without dead ends: 600
[2020-09-24 22:30:07,388 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420
[2020-09-24 22:30:07,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 600 states.
[2020-09-24 22:30:07,465 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 544.
[2020-09-24 22:30:07,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 544 states.
[2020-09-24 22:30:07,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 605 transitions.
[2020-09-24 22:30:07,469 INFO  L78                 Accepts]: Start accepts. Automaton has 544 states and 605 transitions. Word has length 168
[2020-09-24 22:30:07,470 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:30:07,470 INFO  L479      AbstractCegarLoop]: Abstraction has 544 states and 605 transitions.
[2020-09-24 22:30:07,470 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 22:30:07,471 INFO  L276                IsEmpty]: Start isEmpty. Operand 544 states and 605 transitions.
[2020-09-24 22:30:07,474 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 22:30:07,474 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:30:07,474 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:30:07,474 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 22:30:07,475 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:30:07,475 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:30:07,475 INFO  L82        PathProgramCache]: Analyzing trace with hash 1971495200, now seen corresponding path program 1 times
[2020-09-24 22:30:07,475 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:30:07,476 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203934913]
[2020-09-24 22:30:07,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:30:07,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:07,572 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:08,485 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:08,485 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 22:30:08,485 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:08,486 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 960
[2020-09-24 22:30:08,486 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:08,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 22:30:08,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 22:30:08,486 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 22:30:08,487 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:08,805 WARN  L193               SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:30:08,806 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:30:08,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:08,878 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,102 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,103 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:30:09,103 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,104 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 260
[2020-09-24 22:30:09,104 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,104 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,105 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 22:30:09,105 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,156 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:30:09,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,158 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,161 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,161 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:09,162 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,162 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:30:09,162 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,163 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:30:09,164 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,165 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:30:09,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,167 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,169 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,169 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:09,169 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,169 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:30:09,170 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,170 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:30:09,170 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:30:09,172 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:30:09,172 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,174 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,181 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,182 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:09,182 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,182 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:30:09,183 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,183 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,184 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:30:09,184 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,186 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:30:09,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,188 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,191 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,192 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:30:09,192 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,193 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:30:09,193 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,194 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:30:09,194 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,205 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 22:30:09,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,208 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,214 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,214 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:30:09,214 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,215 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:30:09,215 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,215 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:30:09,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:30:09,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:30:09,217 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,219 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 22:30:09,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,221 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,222 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:09,223 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,223 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:30:09,223 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:09,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:30:09,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:09,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 22:30:09,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,229 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,230 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:09,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,231 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:30:09,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:09,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:30:09,233 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:09,233 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,235 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 22:30:09,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:30:09,237 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:30:09,239 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:30:09,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:30:09,239 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:30:09,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:30:09,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:30:09,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:30:09,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:30:09,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:30:09,242 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:30:09,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:30:09,309 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203934913]
[2020-09-24 22:30:09,309 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:30:09,309 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 22:30:09,310 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719421030]
[2020-09-24 22:30:09,311 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 22:30:09,311 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:30:09,311 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 22:30:09,312 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 22:30:09,312 INFO  L87              Difference]: Start difference. First operand 544 states and 605 transitions. Second operand 6 states.
[2020-09-24 22:30:10,005 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:30:10,719 WARN  L193               SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 22:30:12,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:30:12,906 INFO  L93              Difference]: Finished difference Result 1699 states and 1982 transitions.
[2020-09-24 22:30:12,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-09-24 22:30:12,907 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 168
[2020-09-24 22:30:12,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:30:12,915 INFO  L225             Difference]: With dead ends: 1699
[2020-09-24 22:30:12,915 INFO  L226             Difference]: Without dead ends: 1265
[2020-09-24 22:30:12,917 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-24 22:30:12,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1265 states.
[2020-09-24 22:30:13,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1159.
[2020-09-24 22:30:13,057 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1159 states.
[2020-09-24 22:30:13,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1315 transitions.
[2020-09-24 22:30:13,064 INFO  L78                 Accepts]: Start accepts. Automaton has 1159 states and 1315 transitions. Word has length 168
[2020-09-24 22:30:13,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:30:13,065 INFO  L479      AbstractCegarLoop]: Abstraction has 1159 states and 1315 transitions.
[2020-09-24 22:30:13,065 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 22:30:13,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 1159 states and 1315 transitions.
[2020-09-24 22:30:13,069 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-24 22:30:13,069 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:30:13,069 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:30:13,070 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 22:30:13,070 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:30:13,070 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:30:13,070 INFO  L82        PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times
[2020-09-24 22:30:13,071 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:30:13,071 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380184700]
[2020-09-24 22:30:13,071 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:30:13,122 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 22:30:13,129 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 22:30:13,130 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 22:30:13,136 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 22:30:13,172 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:30:13 BoogieIcfgContainer
[2020-09-24 22:30:13,172 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 22:30:13,178 INFO  L168              Benchmark]: Toolchain (without parser) took 44531.39 ms. Allocated memory was 138.9 MB in the beginning and 767.0 MB in the end (delta: 628.1 MB). Free memory was 101.4 MB in the beginning and 562.6 MB in the end (delta: -461.3 MB). Peak memory consumption was 166.8 MB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,184 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,186 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 741.89 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 169.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,186 INFO  L168              Benchmark]: Boogie Preprocessor took 92.92 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,187 INFO  L168              Benchmark]: RCFGBuilder took 1353.54 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 175.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,191 INFO  L168              Benchmark]: TraceAbstraction took 42333.04 ms. Allocated memory was 233.8 MB in the beginning and 767.0 MB in the end (delta: 533.2 MB). Free memory was 175.3 MB in the beginning and 562.6 MB in the end (delta: -387.4 MB). Peak memory consumption was 145.8 MB. Max. memory is 7.1 GB.
[2020-09-24 22:30:13,201 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 741.89 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 169.4 MB in the end (delta: -68.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 92.92 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1353.54 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 175.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 42333.04 ms. Allocated memory was 233.8 MB in the beginning and 767.0 MB in the end (delta: 533.2 MB). Free memory was 175.3 MB in the beginning and 562.6 MB in the end (delta: -387.4 MB). Peak memory consumption was 145.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L40]               int cleanupTimeShifts  =    4;
[L359]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L597]              int pumpRunning  =    0;
[L598]              int systemActive  =    1;
[L849]              int waterLevel  =    1;
[L850]              int methaneLevelCritical  =    0;
[L121]              int retValue_acc ;
[L122]              int tmp ;
[L126]  FCALL       select_helpers()
[L127]  FCALL       select_features()
[L128]  CALL, EXPR  valid_product()
[L582]              int retValue_acc ;
[L585]              retValue_acc = 1
[L586]              return (retValue_acc);
[L128]  RET, EXPR   valid_product()
[L128]              tmp = valid_product()
[L130]  COND TRUE   \read(tmp)
[L132]  FCALL       setup()
[L133]  CALL        runTest()
[L112]  CALL        test()
[L783]              int splverifierCounter ;
[L784]              int tmp ;
[L785]              int tmp___0 ;
[L786]              int tmp___1 ;
[L787]              int tmp___2 ;
[L790]              splverifierCounter = 0
[L792]  COND TRUE   1
[L794]  COND TRUE   splverifierCounter < 4
[L800]              tmp = __VERIFIER_nondet_int()
[L802]  COND TRUE   \read(tmp)
[L804]  CALL        waterRise()
[L867]  COND TRUE   waterLevel < 2
[L868]              waterLevel = waterLevel + 1
[L804]  RET         waterRise()
[L810]              tmp___0 = __VERIFIER_nondet_int()
[L812]  COND FALSE  !(\read(tmp___0))
[L820]              tmp___2 = __VERIFIER_nondet_int()
[L822]  COND FALSE  !(\read(tmp___2))
[L826]              tmp___1 = __VERIFIER_nondet_int()
[L828]  COND TRUE   \read(tmp___1)
[L830]  CALL        stopSystem()
[L770]  COND FALSE  !(\read(pumpRunning))
[L777]              systemActive = 0
[L830]  RET         stopSystem()
[L837]  CALL        timeShift()
[L604]  COND FALSE  !(\read(pumpRunning))
[L611]  COND FALSE  !(\read(systemActive))
[L619]  CALL        __utac_acc__Specification3_spec__1()
[L157]              int tmp ;
[L158]              int tmp___0 ;
[L159]              int tmp___1 ;
[L163]  CALL, EXPR  isMethaneLevelCritical()
[L888]              int retValue_acc ;
[L891]              retValue_acc = methaneLevelCritical
[L892]              return (retValue_acc);
[L163]  RET, EXPR   isMethaneLevelCritical()
[L163]              tmp = isMethaneLevelCritical()
[L165]  COND FALSE  !(\read(tmp))
[L169]  CALL, EXPR  getWaterLevel()
[L920]              int retValue_acc ;
[L923]              retValue_acc = waterLevel
[L924]              return (retValue_acc);
[L169]  RET, EXPR   getWaterLevel()
[L169]              tmp___0 = getWaterLevel()
[L171]  COND TRUE   tmp___0 == 2
[L173]  CALL, EXPR  isPumpRunning()
[L703]              int retValue_acc ;
[L706]              retValue_acc = pumpRunning
[L707]              return (retValue_acc);
[L173]  RET, EXPR   isPumpRunning()
[L173]              tmp___1 = isPumpRunning()
[L175]  COND FALSE  !(\read(tmp___1))
[L179]  CALL        __automaton_fail()
[L148]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1329 SDtfs, 1800 SDslu, 1629 SDs, 0 SdLazy, 3850 SolverSat, 579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1159occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 276 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.3s InterpolantComputationTime, 983 NumberOfCodeBlocks, 983 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 801 ConstructedInterpolants, 0 QuantifiedInterpolants, 332785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...