/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_product04.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 20:12:15,167 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 20:12:15,174 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 20:12:15,216 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 20:12:15,217 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 20:12:15,226 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 20:12:15,228 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 20:12:15,232 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 20:12:15,234 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 20:12:15,237 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 20:12:15,238 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 20:12:15,239 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 20:12:15,240 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 20:12:15,242 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 20:12:15,245 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 20:12:15,247 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 20:12:15,249 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 20:12:15,250 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 20:12:15,252 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 20:12:15,260 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 20:12:15,262 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 20:12:15,263 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 20:12:15,264 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 20:12:15,265 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 20:12:15,279 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 20:12:15,279 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 20:12:15,279 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 20:12:15,280 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 20:12:15,281 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 20:12:15,282 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 20:12:15,283 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 20:12:15,284 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 20:12:15,285 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 20:12:15,285 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 20:12:15,287 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 20:12:15,287 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 20:12:15,288 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 20:12:15,288 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 20:12:15,288 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 20:12:15,289 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 20:12:15,290 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 20:12:15,291 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 20:12:15,336 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 20:12:15,337 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 20:12:15,339 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 20:12:15,339 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 20:12:15,339 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 20:12:15,339 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 20:12:15,340 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 20:12:15,340 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 20:12:15,340 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 20:12:15,341 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 20:12:15,342 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 20:12:15,342 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 20:12:15,342 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 20:12:15,343 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 20:12:15,343 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 20:12:15,343 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 20:12:15,343 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 20:12:15,343 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 20:12:15,344 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 20:12:15,344 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 20:12:15,344 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 20:12:15,344 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 20:12:15,344 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 20:12:15,345 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 20:12:15,345 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 20:12:15,345 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 20:12:15,345 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 20:12:15,345 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 20:12:15,346 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 20:12:15,346 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 20:12:15,779 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 20:12:15,799 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 20:12:15,803 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 20:12:15,805 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 20:12:15,806 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 20:12:15,807 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c
[2020-09-24 20:12:15,870 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d06f95190/c3e6b60fedd0429cb48deac55d8e9c0a/FLAG94950b8e4
[2020-09-24 20:12:16,446 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 20:12:16,447 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c
[2020-09-24 20:12:16,459 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d06f95190/c3e6b60fedd0429cb48deac55d8e9c0a/FLAG94950b8e4
[2020-09-24 20:12:16,718 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d06f95190/c3e6b60fedd0429cb48deac55d8e9c0a
[2020-09-24 20:12:16,733 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 20:12:16,740 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 20:12:16,741 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:16,741 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 20:12:16,745 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 20:12:16,746 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:16" (1/1) ...
[2020-09-24 20:12:16,751 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed69f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:16, skipping insertion in model container
[2020-09-24 20:12:16,751 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:12:16" (1/1) ...
[2020-09-24 20:12:16,760 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 20:12:16,814 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 20:12:17,176 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:17,191 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 20:12:17,373 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 20:12:17,424 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 20:12:17,424 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17 WrapperNode
[2020-09-24 20:12:17,424 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 20:12:17,425 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 20:12:17,425 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 20:12:17,426 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 20:12:17,443 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,445 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,466 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,466 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,499 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,514 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,523 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (1/1) ...
[2020-09-24 20:12:17,547 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 20:12:17,548 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 20:12:17,548 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 20:12:17,549 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 20:12:17,553 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (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 20:12:17,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 20:12:17,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 20:12:17,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:17,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 20:12:17,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 20:12:17,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 20:12:17,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 20:12:17,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 20:12:17,652 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 20:12:17,653 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 20:12:17,654 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 20:12:17,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 20:12:17,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 20:12:17,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 20:12:17,655 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 20:12:17,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 20:12:17,656 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 20:12:17,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 20:12:17,657 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 20:12:17,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 20:12:17,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 20:12:17,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 20:12:17,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 20:12:17,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-24 20:12:17,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 20:12:17,660 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 20:12:17,660 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 20:12:17,661 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 20:12:17,662 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 20:12:17,662 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 20:12:17,662 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 20:12:17,662 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 20:12:17,662 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 20:12:17,663 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 20:12:17,663 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 20:12:17,663 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 20:12:17,663 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 20:12:17,663 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 20:12:17,664 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 20:12:17,665 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 20:12:17,665 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 20:12:17,665 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 20:12:17,665 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 20:12:17,666 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 20:12:17,666 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 20:12:17,666 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 20:12:17,667 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 20:12:17,667 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 20:12:17,667 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 20:12:17,668 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 20:12:17,669 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 20:12:17,669 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 20:12:17,669 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 20:12:17,670 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-24 20:12:17,671 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 20:12:17,671 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 20:12:17,671 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 20:12:17,671 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 20:12:17,671 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 20:12:18,829 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 20:12:18,829 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 20:12:18,836 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:18 BoogieIcfgContainer
[2020-09-24 20:12:18,837 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 20:12:18,838 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 20:12:18,838 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 20:12:18,842 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 20:12:18,842 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:12:16" (1/3) ...
[2020-09-24 20:12:18,843 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:18, skipping insertion in model container
[2020-09-24 20:12:18,843 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:12:17" (2/3) ...
[2020-09-24 20:12:18,844 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:12:18, skipping insertion in model container
[2020-09-24 20:12:18,844 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:12:18" (3/3) ...
[2020-09-24 20:12:18,846 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c
[2020-09-24 20:12:18,857 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 20:12:18,867 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 20:12:18,888 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 20:12:18,920 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 20:12:18,920 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 20:12:18,920 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 20:12:18,921 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 20:12:18,921 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 20:12:18,921 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 20:12:18,921 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 20:12:18,921 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 20:12:18,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 271 states.
[2020-09-24 20:12:18,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 20:12:18,963 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:18,965 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 20:12:18,965 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:18,973 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:18,973 INFO  L82        PathProgramCache]: Analyzing trace with hash 713311147, now seen corresponding path program 1 times
[2020-09-24 20:12:18,983 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:18,984 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240668934]
[2020-09-24 20:12:18,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:19,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:19,443 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:19,657 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:21,031 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:24,339 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:24,340 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 20:12:24,340 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:12:24,340 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5023
[2020-09-24 20:12:24,343 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:24,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 20:12:24,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 20:12:24,344 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 93
[2020-09-24 20:12:24,344 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 20:12:24,790 WARN  L193               SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:24,793 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:24,836 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:24,882 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,191 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,192 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:25,192 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,192 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 354
[2020-09-24 20:12:25,193 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,193 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,202 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,203 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 20:12:25,203 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-24 20:12:25,282 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:25,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,285 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,289 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,289 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:25,289 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,289 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:25,290 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,290 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:25,291 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,292 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:25,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,295 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,298 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,299 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:25,299 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,299 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:25,300 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,300 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:25,301 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,302 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:25,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,306 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,314 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,314 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:25,314 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,315 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 20:12:25,315 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,315 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,316 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:25,316 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,318 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:25,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,321 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,325 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:25,325 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,325 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:25,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:25,326 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,328 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 20:12:25,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,331 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,335 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,335 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:25,335 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,335 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:25,335 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:25,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,336 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:25,336 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,338 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 20:12:25,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,342 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,351 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,351 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:25,351 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,352 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 20:12:25,352 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 20:12:25,352 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:25,353 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:25,353 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,386 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 20:12:25,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:25,389 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:25,391 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:25,392 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:25,392 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:25,392 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:25,392 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:25,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:25,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:25,393 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:25,393 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:25,428 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 20:12:25,429 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240668934]
[2020-09-24 20:12:25,431 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:25,432 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 20:12:25,433 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500424064]
[2020-09-24 20:12:25,441 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 20:12:25,441 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:25,460 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 20:12:25,461 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 20:12:25,464 INFO  L87              Difference]: Start difference. First operand 271 states. Second operand 8 states.
[2020-09-24 20:12:26,042 WARN  L193               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:27,529 WARN  L193               SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:27,909 WARN  L193               SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:28,309 WARN  L193               SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:28,688 WARN  L193               SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:29,037 WARN  L193               SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 20:12:29,338 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:29,652 WARN  L193               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 20:12:30,476 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:30,477 INFO  L93              Difference]: Finished difference Result 496 states and 605 transitions.
[2020-09-24 20:12:30,480 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 20:12:30,482 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-24 20:12:30,483 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:30,503 INFO  L225             Difference]: With dead ends: 496
[2020-09-24 20:12:30,504 INFO  L226             Difference]: Without dead ends: 344
[2020-09-24 20:12:30,510 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 20:12:30,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 344 states.
[2020-09-24 20:12:30,640 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 308.
[2020-09-24 20:12:30,642 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 308 states.
[2020-09-24 20:12:30,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 345 transitions.
[2020-09-24 20:12:30,647 INFO  L78                 Accepts]: Start accepts. Automaton has 308 states and 345 transitions. Word has length 153
[2020-09-24 20:12:30,648 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:30,648 INFO  L479      AbstractCegarLoop]: Abstraction has 308 states and 345 transitions.
[2020-09-24 20:12:30,648 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 20:12:30,649 INFO  L276                IsEmpty]: Start isEmpty. Operand 308 states and 345 transitions.
[2020-09-24 20:12:30,655 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 20:12:30,655 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:30,655 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 20:12:30,656 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 20:12:30,656 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:30,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:30,656 INFO  L82        PathProgramCache]: Analyzing trace with hash 931378707, now seen corresponding path program 1 times
[2020-09-24 20:12:30,657 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:30,657 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045923466]
[2020-09-24 20:12:30,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:30,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:30,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:30,876 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:31,106 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:35,751 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:35,752 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-24 20:12:35,752 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 20:12:35,752 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-24 20:12:35,752 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:35,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 20:12:35,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 20:12:35,753 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 66
[2020-09-24 20:12:35,753 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,065 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 20:12:36,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 20:12:36,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,143 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,346 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,346 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 20:12:36,346 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,346 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 241
[2020-09-24 20:12:36,347 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,347 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 20:12:36,348 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,392 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 20:12:36,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,396 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,399 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:36,400 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,400 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 20:12:36,400 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,401 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:36,401 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,402 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 20:12:36,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,405 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,408 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,408 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:36,408 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,408 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 20:12:36,409 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,409 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:36,409 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,411 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 20:12:36,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,414 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,421 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,421 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:36,421 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,421 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:12:36,422 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,422 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 20:12:36,422 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,424 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 20:12:36,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,426 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,429 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,430 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 20:12:36,430 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,430 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 20:12:36,430 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,431 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 20:12:36,431 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,439 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-24 20:12:36,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,442 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,450 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,450 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 20:12:36,450 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,451 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 20:12:36,451 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 20:12:36,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 20:12:36,451 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 20:12:36,452 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,454 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 20:12:36,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,456 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,457 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,458 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:36,458 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,458 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:36,458 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:36,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:36,459 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:36,459 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,461 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 20:12:36,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,463 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,464 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,464 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:36,465 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,465 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:36,465 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:36,465 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:36,466 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:36,468 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 20:12:36,469 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 20:12:36,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 20:12:36,471 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 20:12:36,473 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 20:12:36,473 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 20:12:36,473 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 20:12:36,474 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 20:12:36,474 FATAL L256   erpolLogProxyWrapper]: Heuristic: BIGGEST
[2020-09-24 20:12:36,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 20:12:36,474 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 20:12:36,475 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 20:12:36,475 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 20:12:36,507 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 20:12:36,507 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045923466]
[2020-09-24 20:12:36,507 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 20:12:36,508 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 20:12:36,508 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909115401]
[2020-09-24 20:12:36,511 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 20:12:36,511 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 20:12:36,512 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 20:12:36,512 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 20:12:36,512 INFO  L87              Difference]: Start difference. First operand 308 states and 345 transitions. Second operand 5 states.
[2020-09-24 20:12:37,039 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 20:12:38,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 20:12:38,538 INFO  L93              Difference]: Finished difference Result 740 states and 884 transitions.
[2020-09-24 20:12:38,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 20:12:38,539 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 159
[2020-09-24 20:12:38,540 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 20:12:38,546 INFO  L225             Difference]: With dead ends: 740
[2020-09-24 20:12:38,546 INFO  L226             Difference]: Without dead ends: 542
[2020-09-24 20:12:38,550 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 20:12:38,551 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 542 states.
[2020-09-24 20:12:38,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 477.
[2020-09-24 20:12:38,649 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 477 states.
[2020-09-24 20:12:38,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 547 transitions.
[2020-09-24 20:12:38,653 INFO  L78                 Accepts]: Start accepts. Automaton has 477 states and 547 transitions. Word has length 159
[2020-09-24 20:12:38,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 20:12:38,654 INFO  L479      AbstractCegarLoop]: Abstraction has 477 states and 547 transitions.
[2020-09-24 20:12:38,654 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 20:12:38,654 INFO  L276                IsEmpty]: Start isEmpty. Operand 477 states and 547 transitions.
[2020-09-24 20:12:38,659 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 176
[2020-09-24 20:12:38,659 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 20:12:38,659 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 20:12:38,660 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 20:12:38,660 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 20:12:38,660 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 20:12:38,660 INFO  L82        PathProgramCache]: Analyzing trace with hash 194624342, now seen corresponding path program 1 times
[2020-09-24 20:12:38,661 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 20:12:38,661 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685896019]
[2020-09-24 20:12:38,661 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 20:12:38,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 20:12:38,730 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 20:12:38,730 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 20:12:38,736 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 20:12:38,762 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:12:38 BoogieIcfgContainer
[2020-09-24 20:12:38,763 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 20:12:38,765 INFO  L168              Benchmark]: Toolchain (without parser) took 22029.81 ms. Allocated memory was 140.5 MB in the beginning and 485.5 MB in the end (delta: 345.0 MB). Free memory was 102.8 MB in the beginning and 92.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 355.1 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,766 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,767 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 684.21 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 175.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,768 INFO  L168              Benchmark]: Boogie Preprocessor took 122.53 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,769 INFO  L168              Benchmark]: RCFGBuilder took 1288.52 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 171.6 MB in the beginning and 183.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,770 INFO  L168              Benchmark]: TraceAbstraction took 19924.76 ms. Allocated memory was 237.0 MB in the beginning and 485.5 MB in the end (delta: 248.5 MB). Free memory was 181.9 MB in the beginning and 92.7 MB in the end (delta: 89.2 MB). Peak memory consumption was 337.8 MB. Max. memory is 7.1 GB.
[2020-09-24 20:12:38,773 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 684.21 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 102.1 MB in the beginning and 175.7 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 122.53 ms. Allocated memory is still 205.0 MB. Free memory was 175.7 MB in the beginning and 171.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1288.52 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 171.6 MB in the beginning and 183.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 19924.76 ms. Allocated memory was 237.0 MB in the beginning and 485.5 MB in the end (delta: 248.5 MB). Free memory was 181.9 MB in the beginning and 92.7 MB in the end (delta: 89.2 MB). Peak memory consumption was 337.8 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L46]               int waterLevel  =    1;
[L47]               int methaneLevelCritical  =    0;
[L295]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L530]              int cleanupTimeShifts  =    4;
[L677]              int pumpRunning  =    0;
[L678]              int systemActive  =    1;
[L606]              int retValue_acc ;
[L607]              int tmp ;
[L611]  FCALL       select_helpers()
[L612]  FCALL       select_features()
[L613]  CALL, EXPR  valid_product()
[L521]              int retValue_acc ;
[L524]              retValue_acc = 1
[L525]              return (retValue_acc);
[L613]  RET, EXPR   valid_product()
[L613]              tmp = valid_product()
[L615]  COND TRUE   \read(tmp)
[L617]  FCALL       setup()
[L618]  CALL        runTest()
[L600]  CALL        test()
[L808]              int splverifierCounter ;
[L809]              int tmp ;
[L810]              int tmp___0 ;
[L811]              int tmp___1 ;
[L812]              int tmp___2 ;
[L815]              splverifierCounter = 0
[L817]  COND TRUE   1
[L819]  COND TRUE   splverifierCounter < 4
[L825]              tmp = __VERIFIER_nondet_int()
[L827]  COND TRUE   \read(tmp)
[L829]  CALL        waterRise()
[L64]   COND TRUE   waterLevel < 2
[L65]               waterLevel = waterLevel + 1
[L829]  RET         waterRise()
[L835]              tmp___0 = __VERIFIER_nondet_int()
[L837]  COND FALSE  !(\read(tmp___0))
[L845]              tmp___2 = __VERIFIER_nondet_int()
[L847]  COND TRUE   \read(tmp___2)
[L849]  CALL        startSystem()
[L802]              systemActive = 1
[L849]  RET         startSystem()
[L864]  CALL        timeShift()
[L684]  COND FALSE  !(\read(pumpRunning))
[L691]  COND TRUE   \read(systemActive)
[L693]  FCALL       processEnvironment()
[L699]  CALL        __utac_acc__Specification3_spec__1()
[L640]              int tmp ;
[L641]              int tmp___0 ;
[L642]              int tmp___1 ;
[L646]  CALL, EXPR  isMethaneLevelCritical()
[L85]               int retValue_acc ;
[L88]               retValue_acc = methaneLevelCritical
[L89]               return (retValue_acc);
[L646]  RET, EXPR   isMethaneLevelCritical()
[L646]              tmp = isMethaneLevelCritical()
[L648]  COND FALSE  !(\read(tmp))
[L652]  CALL, EXPR  getWaterLevel()
[L117]              int retValue_acc ;
[L120]              retValue_acc = waterLevel
[L121]              return (retValue_acc);
[L652]  RET, EXPR   getWaterLevel()
[L652]              tmp___0 = getWaterLevel()
[L654]  COND TRUE   tmp___0 == 2
[L656]  CALL, EXPR  isPumpRunning()
[L739]              int retValue_acc ;
[L742]              retValue_acc = pumpRunning
[L743]              return (retValue_acc);
[L656]  RET, EXPR   isPumpRunning()
[L656]              tmp___1 = isPumpRunning()
[L658]  COND FALSE  !(\read(tmp___1))
[L662]  CALL        __automaton_fail()
[L633]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 36 procedures, 588 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 429 SDtfs, 834 SDslu, 756 SDs, 0 SdLazy, 1269 SolverSat, 285 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 101 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 487 NumberOfCodeBlocks, 487 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 129794 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...