/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:12:08,130 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:08,133 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:08,160 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:08,161 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:08,162 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:08,163 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:08,165 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:08,167 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:08,168 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:08,169 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:08,170 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:08,171 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:08,172 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:08,173 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:08,174 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:08,175 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:08,176 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:08,178 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:08,180 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:08,182 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:08,183 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:08,184 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:08,185 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:08,188 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:08,188 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:08,188 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:08,189 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:08,190 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:08,191 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:08,191 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:08,192 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:08,193 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:08,194 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:08,195 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:08,195 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:08,199 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:08,199 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:08,199 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:08,200 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:08,201 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:08,202 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 20:12:08,249 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:08,251 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:08,252 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:08,252 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:08,252 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:08,253 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:08,253 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:08,253 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:08,254 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:08,254 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:08,254 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:08,254 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:08,254 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:08,255 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:08,256 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:08,257 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:08,257 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:08,257 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:08,257 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:08,257 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:08,258 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:08,258 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:08,258 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:08,258 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:08,259 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:08,259 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:08,259 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:08,259 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:08,259 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:08,260 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;
[2020-09-24 20:12:08,729 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:08,747 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:08,751 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:08,753 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:08,754 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:08,755 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-24 20:12:08,848 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/918125d12/213913f754154a5fb929c9de73b38334/FLAG3bf43e82d
[2020-09-24 20:12:09,475 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:09,476 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c
[2020-09-24 20:12:09,492 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/918125d12/213913f754154a5fb929c9de73b38334/FLAG3bf43e82d
[2020-09-24 20:12:09,732 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/918125d12/213913f754154a5fb929c9de73b38334
[2020-09-24 20:12:09,745 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:09,751 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:09,752 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:09,752 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:09,756 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:09,757 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:09" (1/1) ...
[2020-09-24 20:12:09,761 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21715d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:09, skipping insertion in model container
[2020-09-24 20:12:09,761 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:09" (1/1) ...
[2020-09-24 20:12:09,770 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:12:09,819 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:12:10,293 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:10,309 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:12:10,386 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:10,424 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:12:10,425 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10 WrapperNode
[2020-09-24 20:12:10,425 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:10,426 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:12:10,426 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:12:10,426 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:12:10,444 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,444 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,464 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,465 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,498 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,520 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,529 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
[2020-09-24 20:12:10,539 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:12:10,540 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:12:10,540 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:12:10,540 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:12:10,542 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:10,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:12:10,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:12:10,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:10,646 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:12:10,646 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:12:10,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:12:10,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:12:10,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:12:10,648 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:10,648 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:10,648 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:10,649 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:12:10,649 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:12:10,649 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:12:10,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:12:10,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:12:10,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:12:10,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:12:10,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:12:10,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:12:10,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:12:10,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 20:12:10,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:10,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:12:10,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:12:10,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:12:10,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:12:10,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:12:10,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:12:10,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:12:10,655 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:12:10,655 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:12:10,655 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:12:10,655 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:12:10,656 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:12:10,657 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:12:10,657 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:12:10,657 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:12:10,658 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:12:10,659 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:12:10,659 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:10,659 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:12:10,660 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:10,660 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:12:10,661 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:12:10,662 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:12:10,663 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 20:12:10,663 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:10,663 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:12:10,664 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:12:10,665 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:12:10,665 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:12:10,665 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:12:10,666 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:12:10,667 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:12:10,667 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:12:11,845 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:12:11,845 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:12:11,852 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:11 BoogieIcfgContainer
[2020-09-24 20:12:11,853 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:12:11,854 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:12:11,854 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:12:11,858 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:12:11,858 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:09" (1/3) ...
[2020-09-24 20:12:11,859 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e9a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:11, skipping insertion in model container
[2020-09-24 20:12:11,859 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:10" (2/3) ...
[2020-09-24 20:12:11,860 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e9a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:11, skipping insertion in model container
[2020-09-24 20:12:11,860 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:11" (3/3) ...
[2020-09-24 20:12:11,862 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c
[2020-09-24 20:12:11,875 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:12:11,886 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:12:11,911 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:12:11,946 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:12:11,946 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:12:11,947 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:12:11,947 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:12:11,947 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:12:11,947 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:12:11,947 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:12:11,947 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:12:11,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 262 states.
[2020-09-24 20:12:11,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:12:11,992 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:11,993 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 20:12:11,994 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:12,001 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:12,002 INFO  L82        PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times
[2020-09-24 20:12:12,013 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:12,013 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678547654]
[2020-09-24 20:12:12,014 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:12,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:12,521 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:12,779 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:14,347 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:17,442 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:17,445 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:12:17,445 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:12:17,445 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5055
[2020-09-24 20:12:17,448 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:12:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 20:12:17,449 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-24 20:12:17,449 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:12:17,939 WARN  L193               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:17,941 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:17,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,020 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,235 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,236 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:18,236 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,236 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 254
[2020-09-24 20:12:18,237 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,237 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,237 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,237 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 20:12:18,237 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,303 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:18,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,306 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,309 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,309 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:18,310 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,310 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:18,310 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,310 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,311 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:18,311 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:18,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,315 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,318 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,318 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:18,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,319 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:18,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,319 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:18,320 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,322 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:18,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,333 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,333 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:18,333 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,334 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 20:12:18,334 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,334 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,335 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:18,335 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,337 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:18,338 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,339 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,342 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,343 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:18,343 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,343 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:18,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,343 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:18,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,346 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:12:18,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,348 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,352 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,352 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:18,352 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,352 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:18,353 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:18,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:18,354 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,356 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:12:18,357 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,359 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,366 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,367 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:18,367 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,367 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:12:18,367 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:12:18,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:18,368 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:18,368 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,394 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:12:18,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:18,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:18,399 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:18,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:18,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:18,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:18,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:18,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:18,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:18,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:18,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:18,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 20:12:18,434 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678547654]
[2020-09-24 20:12:18,436 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:18,437 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:12:18,438 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170667367]
[2020-09-24 20:12:18,444 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:12:18,445 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:18,462 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:12:18,463 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:12:18,466 INFO  L87              Difference]: Start difference. First operand 262 states. Second operand 8 states.
[2020-09-24 20:12:19,093 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:20,284 WARN  L193               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:20,601 WARN  L193               SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:20,993 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:21,337 WARN  L193               SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:21,620 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:21,918 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:22,225 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:23,039 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:23,039 INFO  L93              Difference]: Finished difference Result 466 states and 571 transitions.
[2020-09-24 20:12:23,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:12:23,043 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:12:23,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:23,062 INFO  L225             Difference]: With dead ends: 466
[2020-09-24 20:12:23,062 INFO  L226             Difference]: Without dead ends: 323
[2020-09-24 20:12:23,068 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 20:12:23,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 323 states.
[2020-09-24 20:12:23,172 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290.
[2020-09-24 20:12:23,174 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 20:12:23,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 325 transitions.
[2020-09-24 20:12:23,178 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 325 transitions. Word has length 153
[2020-09-24 20:12:23,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:23,179 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 325 transitions.
[2020-09-24 20:12:23,179 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:12:23,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 325 transitions.
[2020-09-24 20:12:23,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-24 20:12:23,186 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:23,187 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]
[2020-09-24 20:12:23,187 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:12:23,187 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:23,187 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:23,188 INFO  L82        PathProgramCache]: Analyzing trace with hash -744495704, now seen corresponding path program 1 times
[2020-09-24 20:12:23,188 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:23,188 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786749662]
[2020-09-24 20:12:23,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:23,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:23,298 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:23,613 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:23,613 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-24 20:12:23,613 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:23,613 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 367
[2020-09-24 20:12:23,614 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:23,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:23,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-24 20:12:23,614 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 20:12:23,614 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,012 WARN  L193               SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:24,014 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:24,026 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,036 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,155 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,155 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:24,156 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,156 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 128
[2020-09-24 20:12:24,156 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,157 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,158 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:24,201 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:24,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,203 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,205 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,205 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:24,205 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,206 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:24,206 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,206 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,207 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,207 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,207 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:24,209 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:24,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,210 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,213 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,213 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:24,213 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,214 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:24,214 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,214 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,215 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,215 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,216 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:24,217 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:24,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,219 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,223 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,223 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:24,224 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,224 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:12:24,224 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,224 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,225 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,225 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,226 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:24,227 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,228 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,231 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,231 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:24,231 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,231 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:24,232 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,232 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,232 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,247 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 20:12:24,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,250 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,253 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:12:24,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,254 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:24,254 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,255 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 20:12:24,264 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 20:12:24,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,267 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,269 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,270 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 20:12:24,270 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,270 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:24,270 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,270 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:24,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:24,271 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-24 20:12:24,271 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,273 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 20:12:24,274 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,275 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,277 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:24,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:24,277 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:24,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,278 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,280 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-24 20:12:24,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,282 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,283 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,283 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:24,283 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,284 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:24,284 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,284 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:24,285 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,285 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,286 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-24 20:12:24,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,288 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,290 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,290 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:24,290 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:24,290 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:24,291 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:24,291 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:24,292 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:24,323 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 20:12:24,324 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786749662]
[2020-09-24 20:12:24,324 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:24,324 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 20:12:24,324 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106604679]
[2020-09-24 20:12:24,327 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 20:12:24,327 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:24,327 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 20:12:24,327 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-24 20:12:24,328 INFO  L87              Difference]: Start difference. First operand 290 states and 325 transitions. Second operand 6 states.
[2020-09-24 20:12:24,764 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:25,792 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:25,793 INFO  L93              Difference]: Finished difference Result 545 states and 668 transitions.
[2020-09-24 20:12:25,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-09-24 20:12:25,794 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-24 20:12:25,795 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:25,799 INFO  L225             Difference]: With dead ends: 545
[2020-09-24 20:12:25,799 INFO  L226             Difference]: Without dead ends: 365
[2020-09-24 20:12:25,803 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-24 20:12:25,804 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2020-09-24 20:12:25,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 290.
[2020-09-24 20:12:25,855 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 290 states.
[2020-09-24 20:12:25,857 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 322 transitions.
[2020-09-24 20:12:25,857 INFO  L78                 Accepts]: Start accepts. Automaton has 290 states and 322 transitions. Word has length 172
[2020-09-24 20:12:25,858 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:25,858 INFO  L479      AbstractCegarLoop]: Abstraction has 290 states and 322 transitions.
[2020-09-24 20:12:25,858 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 20:12:25,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 290 states and 322 transitions.
[2020-09-24 20:12:25,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-24 20:12:25,862 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:25,862 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]
[2020-09-24 20:12:25,862 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:12:25,862 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:25,863 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:25,863 INFO  L82        PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times
[2020-09-24 20:12:25,863 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:25,864 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161951370]
[2020-09-24 20:12:25,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:25,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:12:25,935 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:12:25,935 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:12:25,941 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:12:25,966 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:12:25 BoogieIcfgContainer
[2020-09-24 20:12:25,967 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:12:25,969 INFO  L168              Benchmark]: Toolchain (without parser) took 16222.05 ms. Allocated memory was 138.9 MB in the beginning and 458.8 MB in the end (delta: 319.8 MB). Free memory was 100.8 MB in the beginning and 318.2 MB in the end (delta: -217.4 MB). Peak memory consumption was 102.4 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,970 INFO  L168              Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,971 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 673.69 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 169.9 MB in the end (delta: -69.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,971 INFO  L168              Benchmark]: Boogie Preprocessor took 114.00 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 165.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,972 INFO  L168              Benchmark]: RCFGBuilder took 1312.84 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 181.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,973 INFO  L168              Benchmark]: TraceAbstraction took 14112.71 ms. Allocated memory was 233.8 MB in the beginning and 458.8 MB in the end (delta: 224.9 MB). Free memory was 180.1 MB in the beginning and 318.2 MB in the end (delta: -138.1 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:25,977 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 673.69 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.1 MB in the beginning and 169.9 MB in the end (delta: -69.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 114.00 ms. Allocated memory is still 202.4 MB. Free memory was 169.9 MB in the beginning and 165.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1312.84 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 165.8 MB in the beginning and 181.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 14112.71 ms. Allocated memory was 233.8 MB in the beginning and 458.8 MB in the end (delta: 224.9 MB). Free memory was 180.1 MB in the beginning and 318.2 MB in the end (delta: -138.1 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L256]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L462]              int pumpRunning  =    0;
[L463]              int systemActive  =    1;
[L683]              int cleanupTimeShifts  =    4;
[L779]              int waterLevel  =    1;
[L780]              int methaneLevelCritical  =    0;
[L756]              int retValue_acc ;
[L757]              int tmp ;
[L761]  FCALL       select_helpers()
[L762]  FCALL       select_features()
[L763]  CALL, EXPR  valid_product()
[L69]               int retValue_acc ;
[L72]               retValue_acc = 1
[L73]               return (retValue_acc);
[L763]  RET, EXPR   valid_product()
[L763]              tmp = valid_product()
[L765]  COND TRUE   \read(tmp)
[L767]  FCALL       setup()
[L768]  CALL        runTest()
[L750]  CALL        test()
[L617]              int splverifierCounter ;
[L618]              int tmp ;
[L619]              int tmp___0 ;
[L620]              int tmp___1 ;
[L621]              int tmp___2 ;
[L624]              splverifierCounter = 0
[L626]  COND TRUE   1
[L628]  COND TRUE   splverifierCounter < 4
[L634]              tmp = __VERIFIER_nondet_int()
[L636]  COND TRUE   \read(tmp)
[L638]  CALL        waterRise()
[L797]  COND TRUE   waterLevel < 2
[L798]              waterLevel = waterLevel + 1
[L638]  RET         waterRise()
[L644]              tmp___0 = __VERIFIER_nondet_int()
[L646]  COND FALSE  !(\read(tmp___0))
[L654]              tmp___2 = __VERIFIER_nondet_int()
[L656]  COND TRUE   \read(tmp___2)
[L658]  CALL        startSystem()
[L573]              systemActive = 1
[L658]  RET         startSystem()
[L671]  CALL        timeShift()
[L470]  COND FALSE  !(\read(pumpRunning))
[L477]  COND TRUE   \read(systemActive)
[L479]  FCALL       processEnvironment()
[L485]  CALL        __utac_acc__Specification3_spec__1()
[L580]              int tmp ;
[L581]              int tmp___0 ;
[L582]              int tmp___1 ;
[L586]  CALL, EXPR  isMethaneLevelCritical()
[L818]              int retValue_acc ;
[L821]              retValue_acc = methaneLevelCritical
[L822]              return (retValue_acc);
[L586]  RET, EXPR   isMethaneLevelCritical()
[L586]              tmp = isMethaneLevelCritical()
[L588]  COND FALSE  !(\read(tmp))
[L592]  CALL, EXPR  getWaterLevel()
[L850]              int retValue_acc ;
[L853]              retValue_acc = waterLevel
[L854]              return (retValue_acc);
[L592]  RET, EXPR   getWaterLevel()
[L592]              tmp___0 = getWaterLevel()
[L594]  COND TRUE   tmp___0 == 2
[L596]  CALL, EXPR  isPumpRunning()
[L525]              int retValue_acc ;
[L528]              retValue_acc = pumpRunning
[L529]              return (retValue_acc);
[L596]  RET, EXPR   isPumpRunning()
[L596]              tmp___1 = isPumpRunning()
[L598]  COND FALSE  !(\read(tmp___1))
[L602]  CALL        __automaton_fail()
[L82]               __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 786 SDslu, 709 SDs, 0 SdLazy, 1169 SolverSat, 227 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 127832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...