/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:55:38,259 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:55:38,263 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:55:38,294 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:55:38,295 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:55:38,296 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:55:38,297 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:55:38,299 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:55:38,301 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:55:38,302 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:55:38,303 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:55:38,305 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:55:38,305 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:55:38,306 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:55:38,308 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:55:38,309 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:55:38,310 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:55:38,311 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:55:38,313 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:55:38,315 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:55:38,316 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:55:38,317 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:55:38,318 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:55:38,319 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:55:38,322 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:55:38,322 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:55:38,323 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:55:38,324 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:55:38,324 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:55:38,325 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:55:38,325 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:55:38,326 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:55:38,327 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:55:38,328 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:55:38,329 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:55:38,330 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:55:38,331 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:55:38,331 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:55:38,331 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:55:38,332 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:55:38,333 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:55:38,334 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 16:55:38,360 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:55:38,360 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:55:38,361 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:55:38,362 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:55:38,362 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:55:38,362 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:55:38,362 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:55:38,363 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:55:38,364 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:55:38,364 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:55:38,364 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:55:38,364 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:55:38,364 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:55:38,365 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:55:38,365 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:55:38,365 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:55:38,365 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:55:38,366 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:55:38,366 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:55:38,366 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:55:38,366 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:55:38,366 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:55:38,367 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:55:38,367 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:55:38,367 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;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;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;log-additional-information=true;
[2020-09-24 16:55:38,820 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:55:38,838 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:55:38,842 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:55:38,844 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:55:38,844 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:55:38,846 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c
[2020-09-24 16:55:38,926 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f3c69a2/9398affb7a3546f4832c18018569d240/FLAG978700dc2
[2020-09-24 16:55:39,528 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:55:39,529 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c
[2020-09-24 16:55:39,555 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f3c69a2/9398affb7a3546f4832c18018569d240/FLAG978700dc2
[2020-09-24 16:55:39,792 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84f3c69a2/9398affb7a3546f4832c18018569d240
[2020-09-24 16:55:39,806 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:55:39,811 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:55:39,812 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:39,813 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:55:39,817 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:55:39,818 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:39" (1/1) ...
[2020-09-24 16:55:39,824 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:39, skipping insertion in model container
[2020-09-24 16:55:39,824 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:55:39" (1/1) ...
[2020-09-24 16:55:39,834 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:55:39,885 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:55:40,278 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:40,294 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:55:40,486 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:55:40,533 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:55:40,534 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40 WrapperNode
[2020-09-24 16:55:40,534 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:55:40,535 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:55:40,535 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:55:40,535 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:55:40,549 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,549 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,570 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,571 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,606 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,618 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,624 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (1/1) ...
[2020-09-24 16:55:40,632 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:55:40,633 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:55:40,633 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:55:40,633 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:55:40,634 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (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 16:55:40,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:55:40,714 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:55:40,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:55:40,716 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:55:40,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:55:40,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:55:40,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:55:40,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:55:40,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:55:40,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:55:40,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:55:40,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:55:40,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:55:40,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:40,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:55:40,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:55:40,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:55:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:55:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:55:40,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:55:40,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:55:40,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:55:40,724 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:55:40,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:55:40,725 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:55:40,726 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:55:40,727 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:55:40,727 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:55:40,728 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:55:40,728 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:55:40,728 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:55:40,728 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:55:40,728 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:55:40,729 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:55:40,730 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:55:40,731 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:55:40,732 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:55:40,732 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:55:40,733 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:55:40,733 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:55:40,733 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:55:40,734 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:55:40,735 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:55:41,930 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:55:41,931 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:55:41,941 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:41 BoogieIcfgContainer
[2020-09-24 16:55:41,941 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:55:41,943 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:55:41,943 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:55:41,947 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:55:41,947 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:55:39" (1/3) ...
[2020-09-24 16:55:41,948 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cb382b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:41, skipping insertion in model container
[2020-09-24 16:55:41,948 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:55:40" (2/3) ...
[2020-09-24 16:55:41,949 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cb382b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:55:41, skipping insertion in model container
[2020-09-24 16:55:41,949 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:55:41" (3/3) ...
[2020-09-24 16:55:41,951 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c
[2020-09-24 16:55:41,961 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:55:41,971 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:55:41,991 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:55:42,024 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:55:42,024 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:55:42,025 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:55:42,025 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:55:42,025 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:55:42,025 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:55:42,025 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:55:42,025 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:55:42,051 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states.
[2020-09-24 16:55:42,068 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:55:42,068 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:55:42,070 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]
[2020-09-24 16:55:42,071 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:55:42,080 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:55:42,080 INFO  L82        PathProgramCache]: Analyzing trace with hash 1194640378, now seen corresponding path program 1 times
[2020-09-24 16:55:42,092 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:55:42,092 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569474577]
[2020-09-24 16:55:42,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:55:42,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:55:42,615 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:42,809 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:43,287 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:44,654 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:55:44,946 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:02,827 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:02,827 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:56:02,827 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:56:02,828 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 20357
[2020-09-24 16:56:02,829 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:02,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:56:02,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 16:56:02,829 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-24 16:56:02,830 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:03,308 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:56:03,311 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:03,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,454 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,669 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,669 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:56:03,669 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,670 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 302
[2020-09-24 16:56:03,670 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,671 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 16:56:03,672 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:03,760 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:56:03,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,766 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,766 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,766 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,766 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:03,767 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,767 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:03,768 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,770 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:56:03,771 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,772 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,775 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,775 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,775 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,776 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:03,776 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,776 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:03,777 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,778 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:56:03,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,782 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,790 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,790 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,790 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,791 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:56:03,791 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,791 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:03,792 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,794 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:56:03,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,796 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,799 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,799 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:03,799 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,800 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:03,800 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,800 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:03,801 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,802 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:56:03,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,805 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,808 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,808 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,809 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,809 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:56:03,809 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:03,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,810 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:03,810 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,812 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:56:03,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:03,815 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:03,822 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:03,822 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:03,822 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:03,823 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:56:03,823 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:03,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:56:03,823 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:03,824 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:03,824 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:03,893 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 16:56:03,895 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1569474577]
[2020-09-24 16:56:03,898 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:03,898 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:56:03,900 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315426775]
[2020-09-24 16:56:03,908 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:56:03,908 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:03,931 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:56:03,932 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:56:03,935 INFO  L87              Difference]: Start difference. First operand 312 states. Second operand 8 states.
[2020-09-24 16:56:04,556 WARN  L193               SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:05,844 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:06,210 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:56:06,548 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:06,900 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:56:07,237 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:08,021 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:08,326 WARN  L193               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:08,711 WARN  L193               SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:10,040 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:10,041 INFO  L93              Difference]: Finished difference Result 600 states and 746 transitions.
[2020-09-24 16:56:10,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2020-09-24 16:56:10,044 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 142
[2020-09-24 16:56:10,045 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:10,068 INFO  L225             Difference]: With dead ends: 600
[2020-09-24 16:56:10,069 INFO  L226             Difference]: Without dead ends: 399
[2020-09-24 16:56:10,076 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272
[2020-09-24 16:56:10,100 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 399 states.
[2020-09-24 16:56:10,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 357.
[2020-09-24 16:56:10,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 357 states.
[2020-09-24 16:56:10,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 409 transitions.
[2020-09-24 16:56:10,215 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 409 transitions. Word has length 142
[2020-09-24 16:56:10,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:10,217 INFO  L479      AbstractCegarLoop]: Abstraction has 357 states and 409 transitions.
[2020-09-24 16:56:10,217 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:56:10,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 409 transitions.
[2020-09-24 16:56:10,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 191
[2020-09-24 16:56:10,225 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:10,229 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:56:10,229 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:56:10,230 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:10,230 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:10,230 INFO  L82        PathProgramCache]: Analyzing trace with hash -1791967861, now seen corresponding path program 1 times
[2020-09-24 16:56:10,230 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:10,231 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736990532]
[2020-09-24 16:56:10,231 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:10,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:10,336 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:10,800 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,106 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,107 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 229
[2020-09-24 16:56:16,107 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:56:16,108 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5818
[2020-09-24 16:56:16,108 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,108 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 16:56:16,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:56:16,109 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 136
[2020-09-24 16:56:16,109 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:16,454 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:56:16,455 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:56:16,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,512 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,705 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,706 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:56:16,706 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,706 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 223
[2020-09-24 16:56:16,706 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:16,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:16,707 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:56:16,707 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:16,752 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:56:16,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,758 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,758 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:16,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,758 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:56:16,759 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:16,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:16,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:16,759 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:16,760 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:56:16,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,765 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,771 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,771 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:16,771 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:16,772 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:16,773 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:56:16,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,786 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,786 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:16,786 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,787 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:56:16,787 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:16,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:16,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:16,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:16,789 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:56:16,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,791 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,793 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:56:16,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:16,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:56:16,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:16,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:56:16,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:16,807 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 16:56:16,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,815 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,853 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,912 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,912 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 51
[2020-09-24 16:56:16,913 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 16:56:16,913 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-24 16:56:16,913 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:56:16,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 29
[2020-09-24 16:56:16,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:56:16,915 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:16,920 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:56:16,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:16,928 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:16,985 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:16,986 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 16:56:16,986 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:16,986 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 61
[2020-09-24 16:56:16,987 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:16,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 16:56:16,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 16:56:16,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 16:56:16,988 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:17,025 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:56:17,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:17,033 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:17,064 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:17,064 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 16:56:17,064 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:17,065 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 34
[2020-09-24 16:56:17,065 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:17,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:56:17,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:17,066 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 22
[2020-09-24 16:56:17,067 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:17,127 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 16:56:17,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:17,132 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:17,138 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:17,139 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 16:56:17,139 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:17,139 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:56:17,139 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:17,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:17,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:17,140 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:17,140 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:56:17,142 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 16:56:17,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:17,144 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:17,149 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:17,151 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:56:17,152 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:17,153 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:56:17,154 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:17,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:17,154 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 16:56:17,155 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:17,155 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:17,163 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-09-24 16:56:17,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:17,166 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:17,173 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:17,174 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:17,174 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:17,174 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:56:17,175 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:17,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:56:17,175 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:56:17,176 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:56:17,176 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:17,229 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178
[2020-09-24 16:56:17,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:17,231 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:17,233 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:56:17,233 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:56:17,234 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:56:17,234 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:56:17,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:56:17,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:56:17,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:56:17,235 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:56:17,236 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:56:17,323 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 16:56:17,324 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736990532]
[2020-09-24 16:56:17,325 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:56:17,325 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2020-09-24 16:56:17,326 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793082475]
[2020-09-24 16:56:17,331 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 16:56:17,333 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:56:17,333 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 16:56:17,334 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182
[2020-09-24 16:56:17,334 INFO  L87              Difference]: Start difference. First operand 357 states and 409 transitions. Second operand 14 states.
[2020-09-24 16:56:17,870 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:18,891 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:19,258 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:56:19,642 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:20,033 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:56:20,356 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:20,879 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:56:21,212 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:56:21,530 WARN  L193               SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:21,881 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:56:22,205 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:56:22,550 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:22,940 WARN  L193               SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:56:23,302 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:23,916 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:24,261 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:24,643 WARN  L193               SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:56:24,996 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:25,360 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:56:25,662 WARN  L193               SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:56:27,085 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:56:27,086 INFO  L93              Difference]: Finished difference Result 887 states and 1145 transitions.
[2020-09-24 16:56:27,087 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2020-09-24 16:56:27,087 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 190
[2020-09-24 16:56:27,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:56:27,097 INFO  L225             Difference]: With dead ends: 887
[2020-09-24 16:56:27,098 INFO  L226             Difference]: Without dead ends: 640
[2020-09-24 16:56:27,102 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190
[2020-09-24 16:56:27,103 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 640 states.
[2020-09-24 16:56:27,190 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 539.
[2020-09-24 16:56:27,190 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 539 states.
[2020-09-24 16:56:27,194 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 632 transitions.
[2020-09-24 16:56:27,195 INFO  L78                 Accepts]: Start accepts. Automaton has 539 states and 632 transitions. Word has length 190
[2020-09-24 16:56:27,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:56:27,196 INFO  L479      AbstractCegarLoop]: Abstraction has 539 states and 632 transitions.
[2020-09-24 16:56:27,196 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 16:56:27,196 INFO  L276                IsEmpty]: Start isEmpty. Operand 539 states and 632 transitions.
[2020-09-24 16:56:27,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2020-09-24 16:56:27,202 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:56:27,202 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:56:27,203 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:56:27,203 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:56:27,203 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:56:27,203 INFO  L82        PathProgramCache]: Analyzing trace with hash -1941761769, now seen corresponding path program 1 times
[2020-09-24 16:56:27,204 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:56:27,204 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216835045]
[2020-09-24 16:56:27,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:56:27,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:56:27,304 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:27,429 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:27,522 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:27,610 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:27,995 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:56:28,133 FATAL L256   erpolLogProxyWrapper]: Now shrinking...