/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_spec3_product06.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:49:51,014 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:49:51,019 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:49:51,062 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:49:51,063 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:49:51,072 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:49:51,074 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:49:51,077 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:49:51,080 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:49:51,084 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:49:51,085 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:49:51,086 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:49:51,086 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:49:51,089 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:49:51,092 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:49:51,093 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:49:51,095 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:49:51,096 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:49:51,097 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:49:51,105 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:49:51,108 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:49:51,109 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:49:51,110 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:49:51,111 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:49:51,125 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:49:51,126 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:49:51,126 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:49:51,130 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:49:51,131 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:49:51,134 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:49:51,134 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:49:51,135 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:49:51,138 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:49:51,139 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:49:51,140 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:49:51,140 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:49:51,141 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:49:51,141 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:49:51,141 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:49:51,143 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:49:51,143 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:49:51,144 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 16:49:51,188 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:49:51,188 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:49:51,191 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:49:51,191 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:49:51,191 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:49:51,191 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:49:51,192 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:49:51,192 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:49:51,192 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:49:51,192 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:49:51,193 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:49:51,194 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:49:51,194 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:49:51,195 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:49:51,195 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:49:51,195 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:49:51,195 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:49:51,195 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:49:51,196 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:49:51,196 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:49:51,196 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:49:51,196 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:49:51,197 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:49:51,197 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:49:51,197 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:49:51,197 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:49:51,197 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:49:51,198 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:49:51,198 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:49:51,198 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 16:49:51,696 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:49:51,715 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:49:51,719 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:49:51,721 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:49:51,721 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:49:51,723 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-24 16:49:51,800 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73281b6a/7ca1b842e46f45cdac69026d050cf47e/FLAG47e67b4bb
[2020-09-24 16:49:52,422 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:49:52,423 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c
[2020-09-24 16:49:52,436 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73281b6a/7ca1b842e46f45cdac69026d050cf47e/FLAG47e67b4bb
[2020-09-24 16:49:52,675 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73281b6a/7ca1b842e46f45cdac69026d050cf47e
[2020-09-24 16:49:52,688 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:49:52,694 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:49:52,695 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:49:52,695 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:49:52,700 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:49:52,701 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:52" (1/1) ...
[2020-09-24 16:49:52,706 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d644e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:52, skipping insertion in model container
[2020-09-24 16:49:52,706 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:49:52" (1/1) ...
[2020-09-24 16:49:52,715 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:49:52,771 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:49:53,231 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:49:53,247 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:49:53,362 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:49:53,399 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:49:53,400 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53 WrapperNode
[2020-09-24 16:49:53,400 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:49:53,401 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:49:53,401 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:49:53,401 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:49:53,418 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,418 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,443 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,444 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,476 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,488 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,493 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (1/1) ...
[2020-09-24 16:49:53,500 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:49:53,501 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:49:53,501 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:49:53,501 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:49:53,503 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (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 16:49:53,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:49:53,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:49:53,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:49:53,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:49:53,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:49:53,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:49:53,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:49:53,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:49:53,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:49:53,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:49:53,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:49:53,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:49:53,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:49:53,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:49:53,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:49:53,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:49:53,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 16:49:53,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:49:53,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:49:53,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:49:53,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:49:53,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:49:53,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:49:53,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:49:53,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:49:53,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:49:53,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:49:53,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:49:53,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:49:53,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:49:53,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:49:53,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:49:53,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:49:53,596 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:49:53,596 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:49:53,597 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:49:53,598 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:49:53,599 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:49:53,600 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:49:53,601 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:49:53,602 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:49:53,602 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:49:53,602 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:49:53,602 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:49:53,602 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:49:53,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:49:53,604 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:49:53,604 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:49:53,604 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:49:54,756 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:49:54,756 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:49:54,764 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:54 BoogieIcfgContainer
[2020-09-24 16:49:54,764 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:49:54,765 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:49:54,766 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:49:54,770 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:49:54,770 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:49:52" (1/3) ...
[2020-09-24 16:49:54,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efc51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:54, skipping insertion in model container
[2020-09-24 16:49:54,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:49:53" (2/3) ...
[2020-09-24 16:49:54,772 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efc51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:49:54, skipping insertion in model container
[2020-09-24 16:49:54,772 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:49:54" (3/3) ...
[2020-09-24 16:49:54,774 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c
[2020-09-24 16:49:54,787 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:49:54,799 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:49:54,820 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:49:54,849 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:49:54,849 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:49:54,849 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:49:54,850 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:49:54,850 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:49:54,850 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:49:54,850 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:49:54,850 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:49:54,877 INFO  L276                IsEmpty]: Start isEmpty. Operand 279 states.
[2020-09-24 16:49:54,895 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 16:49:54,895 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:49:54,897 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 16:49:54,898 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:49:54,906 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:49:54,906 INFO  L82        PathProgramCache]: Analyzing trace with hash 1857034691, now seen corresponding path program 1 times
[2020-09-24 16:49:54,918 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:49:54,919 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614767127]
[2020-09-24 16:49:54,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:49:55,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:49:55,452 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:49:55,636 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:49:57,434 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:01,617 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:01,618 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:50:01,618 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:01,618 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6318
[2020-09-24 16:50:01,620 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:01,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:01,620 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 16:50:01,621 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:01,621 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:50:02,009 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:02,012 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:02,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,040 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,150 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,150 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:02,150 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,151 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-24 16:50:02,151 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:02,152 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,152 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:02,214 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:02,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,216 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,218 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,218 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:02,219 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,219 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:02,219 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,219 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:02,220 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,220 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:02,221 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:02,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,223 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,225 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,226 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:02,226 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,226 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:02,227 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:02,227 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,228 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:02,229 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:02,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,234 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,239 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,239 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:02,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,240 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:50:02,240 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,240 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:02,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,241 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:02,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:02,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,248 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,249 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:02,249 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,249 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:02,249 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:02,250 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,250 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:02,253 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 16:50:02,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,255 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,258 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,258 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:02,258 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,258 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:02,259 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:02,259 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,260 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:02,262 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 16:50:02,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,269 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,269 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:02,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:02,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:02,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:50:02,274 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 16:50:02,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:02,279 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:02,282 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:02,283 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:02,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:02,283 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:02,283 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:02,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:02,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:02,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:02,284 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:02,320 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 16:50:02,321 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614767127]
[2020-09-24 16:50:02,323 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:02,324 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 16:50:02,325 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320430077]
[2020-09-24 16:50:02,335 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 16:50:02,336 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:02,353 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 16:50:02,354 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:02,357 INFO  L87              Difference]: Start difference. First operand 279 states. Second operand 3 states.
[2020-09-24 16:50:03,739 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:03,739 INFO  L93              Difference]: Finished difference Result 422 states and 505 transitions.
[2020-09-24 16:50:03,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 16:50:03,742 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 16:50:03,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:03,762 INFO  L225             Difference]: With dead ends: 422
[2020-09-24 16:50:03,763 INFO  L226             Difference]: Without dead ends: 268
[2020-09-24 16:50:03,769 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 16:50:03,790 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268 states.
[2020-09-24 16:50:03,864 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228.
[2020-09-24 16:50:03,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 228 states.
[2020-09-24 16:50:03,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions.
[2020-09-24 16:50:03,871 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 153
[2020-09-24 16:50:03,872 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:03,872 INFO  L479      AbstractCegarLoop]: Abstraction has 228 states and 246 transitions.
[2020-09-24 16:50:03,872 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 16:50:03,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions.
[2020-09-24 16:50:03,877 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 16:50:03,878 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:03,878 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 16:50:03,878 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:50:03,879 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:03,879 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:03,879 INFO  L82        PathProgramCache]: Analyzing trace with hash -1018336135, now seen corresponding path program 1 times
[2020-09-24 16:50:03,879 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:03,880 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24602324]
[2020-09-24 16:50:03,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:03,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:03,993 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:04,099 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:05,709 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:11,649 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:11,652 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 16:50:11,652 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 16:50:11,652 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7711
[2020-09-24 16:50:11,652 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:11,652 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:50:11,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 16:50:11,653 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 16:50:11,653 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,134 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:50:12,136 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:50:12,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,225 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,431 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,432 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:50:12,432 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,432 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 243
[2020-09-24 16:50:12,432 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,433 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 16:50:12,433 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,471 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:50:12,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,474 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,476 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,477 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,478 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:12,478 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,479 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:50:12,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,481 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,483 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,484 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:12,484 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,484 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:12,484 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,484 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,485 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:12,485 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,486 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:50:12,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,489 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,496 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,497 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:12,497 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,497 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:50:12,497 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,498 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:12,498 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,500 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:50:12,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,502 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,504 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,505 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:50:12,505 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,505 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:50:12,505 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,505 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,506 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:50:12,506 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,508 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 16:50:12,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,510 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,513 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,514 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:12,514 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,514 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:50:12,514 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,514 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:50:12,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,515 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:12,515 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,517 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 16:50:12,518 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,520 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,527 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,527 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:12,527 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,527 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:50:12,528 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,528 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:50:12,528 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:50:12,528 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:50:12,528 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,563 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 16:50:12,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:12,565 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:12,567 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:50:12,567 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:50:12,567 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:50:12,568 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:50:12,568 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:50:12,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:50:12,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:50:12,568 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:50:12,569 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:50:12,605 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 16:50:12,606 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24602324]
[2020-09-24 16:50:12,606 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:50:12,606 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 16:50:12,607 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185197041]
[2020-09-24 16:50:12,611 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 16:50:12,611 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:50:12,611 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 16:50:12,611 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 16:50:12,612 INFO  L87              Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 8 states.
[2020-09-24 16:50:13,181 WARN  L193               SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:14,608 WARN  L193               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:14,978 WARN  L193               SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:15,385 WARN  L193               SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:15,713 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:50:16,015 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:50:16,322 WARN  L193               SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:16,658 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:50:17,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:50:17,689 INFO  L93              Difference]: Finished difference Result 500 states and 595 transitions.
[2020-09-24 16:50:17,690 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 16:50:17,690 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 154
[2020-09-24 16:50:17,692 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:50:17,697 INFO  L225             Difference]: With dead ends: 500
[2020-09-24 16:50:17,697 INFO  L226             Difference]: Without dead ends: 382
[2020-09-24 16:50:17,700 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 16:50:17,701 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 382 states.
[2020-09-24 16:50:17,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 338.
[2020-09-24 16:50:17,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 338 states.
[2020-09-24 16:50:17,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 382 transitions.
[2020-09-24 16:50:17,773 INFO  L78                 Accepts]: Start accepts. Automaton has 338 states and 382 transitions. Word has length 154
[2020-09-24 16:50:17,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:50:17,774 INFO  L479      AbstractCegarLoop]: Abstraction has 338 states and 382 transitions.
[2020-09-24 16:50:17,774 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 16:50:17,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 338 states and 382 transitions.
[2020-09-24 16:50:17,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 16:50:17,780 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:50:17,780 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]
[2020-09-24 16:50:17,780 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:50:17,780 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:50:17,781 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:50:17,781 INFO  L82        PathProgramCache]: Analyzing trace with hash -1903712734, now seen corresponding path program 1 times
[2020-09-24 16:50:17,781 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:50:17,781 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909731844]
[2020-09-24 16:50:17,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:50:17,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:50:17,881 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:17,967 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:18,091 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:23,419 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:50:24,105 FATAL L256   erpolLogProxyWrapper]: Now shrinking...