/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:58:56,449 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:58:56,453 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:58:56,495 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:58:56,497 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:58:56,508 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:58:56,510 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:58:56,513 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:58:56,516 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:58:56,517 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:58:56,519 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:58:56,521 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:58:56,522 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:58:56,526 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:58:56,529 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:58:56,531 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:58:56,533 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:58:56,535 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:58:56,537 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:58:56,544 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:58:56,545 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:58:56,548 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:58:56,549 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:58:56,550 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:58:56,555 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:58:56,555 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:58:56,555 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:58:56,558 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:58:56,559 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:58:56,561 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:58:56,561 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:58:56,562 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:58:56,563 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:58:56,563 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:58:56,565 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:58:56,565 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:58:56,566 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:58:56,566 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:58:56,566 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:58:56,567 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:58:56,569 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:58:56,570 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 16:58:56,601 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:58:56,601 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:58:56,602 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:58:56,603 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:58:56,603 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:58:56,603 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:58:56,603 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:58:56,603 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:58:56,604 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:58:56,604 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:58:56,604 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:58:56,604 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:58:56,605 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:58:56,605 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:58:56,605 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:58:56,605 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:58:56,605 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:58:56,606 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:58:56,606 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:58:56,606 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:58:56,606 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:58:56,606 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:56,607 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:58:56,607 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:58:56,607 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:58:56,607 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:58:56,607 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:58:56,608 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:58:56,608 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:58:56,608 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:58:57,038 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:58:57,057 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:58:57,061 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:58:57,063 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:58:57,063 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:58:57,065 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c
[2020-09-24 16:58:57,147 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae35a2dc5/49aaa5ad90c8444099dd4e590987f09a/FLAGfdfb7bd01
[2020-09-24 16:58:57,745 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:58:57,746 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c
[2020-09-24 16:58:57,764 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae35a2dc5/49aaa5ad90c8444099dd4e590987f09a/FLAGfdfb7bd01
[2020-09-24 16:58:58,006 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae35a2dc5/49aaa5ad90c8444099dd4e590987f09a
[2020-09-24 16:58:58,022 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:58:58,028 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:58:58,029 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:58,029 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:58:58,033 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:58:58,035 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,039 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eb1d53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58, skipping insertion in model container
[2020-09-24 16:58:58,040 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,049 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:58:58,106 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:58:58,525 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:58,635 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:58:58,792 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:58:58,833 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:58:58,834 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58 WrapperNode
[2020-09-24 16:58:58,834 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:58:58,835 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:58:58,835 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:58:58,835 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:58:58,851 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,851 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,874 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,874 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,910 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,923 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,928 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
[2020-09-24 16:58:58,936 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:58:58,937 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:58:58,937 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:58:58,937 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:58:58,939 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:58:59,016 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:58:59,017 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:58:59,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:59,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:58:59,018 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:59,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:59,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:58:59,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:58:59,019 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:58:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:58:59,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:58:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:58:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 16:58:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 16:58:59,021 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:58:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:58:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:58:59,022 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:58:59,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:58:59,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:58:59,023 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:58:59,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:58:59,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:58:59,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:58:59,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:58:59,026 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:58:59,027 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:59,028 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:58:59,029 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:58:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:58:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:58:59,030 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:58:59,031 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:58:59,031 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 16:58:59,031 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 16:58:59,031 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:58:59,032 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:58:59,032 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:58:59,032 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:58:59,032 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:58:59,032 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 16:58:59,033 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:58:59,034 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:58:59,035 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:58:59,035 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:58:59,036 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1
[2020-09-24 16:58:59,036 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:58:59,037 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:58:59,037 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:58:59,038 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:58:59,038 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:58:59,038 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:58:59,038 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:58:59,038 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:58:59,039 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:58:59,040 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:58:59,041 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:58:59,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:59:00,264 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:59:00,264 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:59:00,272 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:00 BoogieIcfgContainer
[2020-09-24 16:59:00,272 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:59:00,273 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:59:00,273 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:59:00,280 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:59:00,280 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:58" (1/3) ...
[2020-09-24 16:59:00,281 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9e2e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:00, skipping insertion in model container
[2020-09-24 16:59:00,281 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:58" (2/3) ...
[2020-09-24 16:59:00,282 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9e2e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:59:00, skipping insertion in model container
[2020-09-24 16:59:00,282 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:59:00" (3/3) ...
[2020-09-24 16:59:00,284 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c
[2020-09-24 16:59:00,297 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:59:00,309 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:59:00,331 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:59:00,365 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:59:00,365 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:59:00,365 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:59:00,365 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:59:00,366 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:59:00,366 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:59:00,366 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:59:00,366 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:59:00,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 331 states.
[2020-09-24 16:59:00,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 16:59:00,417 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:59:00,419 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:59:00,419 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:59:00,426 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:59:00,427 INFO  L82        PathProgramCache]: Analyzing trace with hash -505223446, now seen corresponding path program 1 times
[2020-09-24 16:59:00,437 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:59:00,438 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454440084]
[2020-09-24 16:59:00,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:59:00,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:00,979 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:01,180 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:02,689 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:02,935 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:05,658 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:13,307 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:13,307 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 197
[2020-09-24 16:59:13,308 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:59:13,316 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12487
[2020-09-24 16:59:13,319 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:13,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:59:13,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-24 16:59:13,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 115
[2020-09-24 16:59:13,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 16:59:13,867 WARN  L193               SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:59:13,870 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:59:13,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:13,973 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,215 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,215 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-24 16:59:14,216 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,216 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 284
[2020-09-24 16:59:14,216 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,217 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-24 16:59:14,217 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,313 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2020-09-24 16:59:14,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,316 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,319 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,319 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:14,319 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,320 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:59:14,320 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,320 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,321 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:14,321 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,323 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2020-09-24 16:59:14,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,325 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,329 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,329 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:14,330 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,330 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:59:14,330 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,330 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,331 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:14,331 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:59:14,333 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2020-09-24 16:59:14,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,337 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,344 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,344 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:14,344 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,345 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:59:14,345 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,345 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:14,346 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,348 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2020-09-24 16:59:14,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,354 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:59:14,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,355 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:59:14,355 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,356 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:59:14,356 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,370 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2020-09-24 16:59:14,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,376 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,376 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 16:59:14,376 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,377 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:59:14,377 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,377 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,378 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 16:59:14,378 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,380 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:59:14,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,387 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,394 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,395 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-24 16:59:14,395 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,395 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 16:59:14,395 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,396 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-24 16:59:14,396 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,400 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:59:14,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,402 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,404 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,404 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:14,405 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,405 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:59:14,405 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,405 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:59:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,406 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:59:14,406 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:59:14,409 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-24 16:59:14,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,413 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,416 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,416 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:14,416 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,416 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:59:14,417 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:59:14,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,417 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:14,418 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,423 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-24 16:59:14,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:14,427 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:14,434 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:59:14,434 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:59:14,435 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:59:14,435 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 16:59:14,436 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:59:14,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:59:14,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:59:14,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:59:14,437 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:59:14,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-09-24 16:59:14,526 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454440084]
[2020-09-24 16:59:14,529 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:59:14,529 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:59:14,530 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361510302]
[2020-09-24 16:59:14,540 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:59:14,541 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:59:14,565 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:59:14,567 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:59:14,571 INFO  L87              Difference]: Start difference. First operand 331 states. Second operand 9 states.
[2020-09-24 16:59:15,200 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:59:15,978 WARN  L193               SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:16,297 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:59:17,780 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 16:59:18,066 WARN  L193               SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:18,428 WARN  L193               SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:59:19,036 WARN  L193               SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:19,378 WARN  L193               SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:59:19,694 WARN  L193               SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 16:59:20,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:59:20,361 INFO  L93              Difference]: Finished difference Result 631 states and 768 transitions.
[2020-09-24 16:59:20,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:59:20,363 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 160
[2020-09-24 16:59:20,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:59:20,388 INFO  L225             Difference]: With dead ends: 631
[2020-09-24 16:59:20,388 INFO  L226             Difference]: Without dead ends: 424
[2020-09-24 16:59:20,401 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:59:20,426 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 424 states.
[2020-09-24 16:59:20,577 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 375.
[2020-09-24 16:59:20,578 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 375 states.
[2020-09-24 16:59:20,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 422 transitions.
[2020-09-24 16:59:20,586 INFO  L78                 Accepts]: Start accepts. Automaton has 375 states and 422 transitions. Word has length 160
[2020-09-24 16:59:20,590 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:59:20,590 INFO  L479      AbstractCegarLoop]: Abstraction has 375 states and 422 transitions.
[2020-09-24 16:59:20,590 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:59:20,591 INFO  L276                IsEmpty]: Start isEmpty. Operand 375 states and 422 transitions.
[2020-09-24 16:59:20,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 236
[2020-09-24 16:59:20,610 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:59:20,611 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 16:59:20,612 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:59:20,612 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:59:20,612 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:59:20,612 INFO  L82        PathProgramCache]: Analyzing trace with hash -184278339, now seen corresponding path program 1 times
[2020-09-24 16:59:20,613 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:59:20,613 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286557249]
[2020-09-24 16:59:20,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:59:20,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:59:20,746 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:20,849 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:21,013 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:21,241 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:23,685 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:59:32,253 FATAL L256   erpolLogProxyWrapper]: Now shrinking...