/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product21.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:26,000 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:26,004 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:26,032 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:26,032 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:26,034 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:26,035 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:26,037 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:26,039 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:26,040 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:56:26,041 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:56:26,043 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:26,043 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:26,044 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:26,049 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:26,054 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:26,055 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:26,059 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:26,060 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:26,064 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:26,066 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:26,071 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:26,074 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:26,075 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:26,082 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:26,082 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:26,082 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:26,086 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:26,087 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:26,089 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:26,090 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:26,091 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:26,092 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:26,094 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:26,095 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:26,096 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:26,097 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:26,097 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:26,097 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:26,098 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:26,100 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:26,101 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
[2020-09-25 10:56:26,165 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:26,166 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:26,168 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:26,169 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 10:56:26,169 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 10:56:26,169 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:26,169 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 10:56:26,169 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 10:56:26,170 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 10:56:26,170 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 10:56:26,171 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:26,171 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:26,171 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:26,171 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 10:56:26,171 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 10:56:26,173 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 10:56:26,173 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:26,173 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:26,173 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:26,174 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 10:56:26,174 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 10:56:26,174 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:26,174 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:26,174 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:26,175 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:26,175 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 10:56:26,175 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:26,175 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:26,175 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:26,176 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 10:56:26,647 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:26,670 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:26,675 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:26,677 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:26,679 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 10:56:26,681 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 10:56:26,783 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00c62a8e/edd2eaa91b254e438671a22ee98b03d7/FLAG1c4e17c51
[2020-09-25 10:56:27,381 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 10:56:27,382 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c
[2020-09-25 10:56:27,411 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00c62a8e/edd2eaa91b254e438671a22ee98b03d7/FLAG1c4e17c51
[2020-09-25 10:56:27,658 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f00c62a8e/edd2eaa91b254e438671a22ee98b03d7
[2020-09-25 10:56:27,670 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:27,676 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:27,677 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:27,677 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:27,681 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:27,682 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:27" (1/1) ...
[2020-09-25 10:56:27,687 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6afcb89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:27, skipping insertion in model container
[2020-09-25 10:56:27,687 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:27" (1/1) ...
[2020-09-25 10:56:27,696 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 10:56:27,749 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:28,163 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:28,176 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 10:56:28,353 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:28,391 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 10:56:28,392 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28 WrapperNode
[2020-09-25 10:56:28,392 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:28,393 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:28,393 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:28,394 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:28,410 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,411 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,432 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,433 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,467 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,482 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,492 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,510 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:28,510 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:28,511 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:28,511 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:28,512 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (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
[2020-09-25 10:56:28,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:28,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:28,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:28,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:28,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:28,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:28,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:28,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:28,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:28,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:28,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:28,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:56:28,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:28,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:28,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:28,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:28,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:28,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:28,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:56:28,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:28,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:28,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:28,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:28,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:28,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:28,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:28,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:28,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:56:28,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:28,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:28,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:28,618 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:28,618 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:28,618 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:28,618 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:28,618 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:28,619 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:28,619 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:28,619 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:28,619 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:28,619 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:28,620 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:28,621 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:28,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:28,621 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:28,621 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:28,621 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:28,622 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:28,622 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:28,622 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:28,622 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:28,622 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:28,623 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:28,623 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:28,623 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:28,623 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:56:28,623 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:28,624 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:28,624 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:28,624 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:28,624 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:28,624 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:28,625 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:28,625 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:28,625 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:56:28,627 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 10:56:28,627 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:28,627 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:28,628 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:28,629 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:28,630 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:28,630 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:28,630 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:29,931 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:29,932 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:29,943 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:29 BoogieIcfgContainer
[2020-09-25 10:56:29,943 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:29,946 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:29,946 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:29,950 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:29,951 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:27" (1/3) ...
[2020-09-25 10:56:29,952 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340db74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:29, skipping insertion in model container
[2020-09-25 10:56:29,952 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (2/3) ...
[2020-09-25 10:56:29,953 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340db74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:29, skipping insertion in model container
[2020-09-25 10:56:29,953 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:29" (3/3) ...
[2020-09-25 10:56:29,956 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c
[2020-09-25 10:56:29,968 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:29,985 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:30,010 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:30,057 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:30,057 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:30,058 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:30,058 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:30,058 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:30,058 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:30,058 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:30,058 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:30,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states.
[2020-09-25 10:56:30,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:30,140 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:30,141 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]
[2020-09-25 10:56:30,142 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:30,151 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:30,152 INFO  L82        PathProgramCache]: Analyzing trace with hash 1461403982, now seen corresponding path program 1 times
[2020-09-25 10:56:30,164 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:30,164 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709846654]
[2020-09-25 10:56:30,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:30,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,687 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,907 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:31,403 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:34,688 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:34,688 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:34,689 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:34,689 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4168
[2020-09-25 10:56:34,694 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:34,695 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:34,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:34,696 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 10:56:34,697 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 90
[2020-09-25 10:56:34,697 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 10:56:35,390 WARN  L193               SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:35,398 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:35,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,498 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,754 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,755 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:35,755 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,755 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 299
[2020-09-25 10:56:35,756 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,756 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,756 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,757 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 10:56:35,757 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,830 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:35,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,835 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,840 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:35,842 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,842 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,843 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:35,843 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,846 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:35,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,850 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,857 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,857 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,857 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,858 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:35,858 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,858 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,859 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:35,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,865 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:35,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,871 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,882 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,882 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,883 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,883 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 10:56:35,883 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,883 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,884 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:35,884 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,895 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:35,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,899 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,905 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,906 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:35,906 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,906 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:35,906 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,907 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:35,907 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,911 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:35,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,914 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,918 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,918 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,918 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,918 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:35,919 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,919 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:35,919 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,920 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:35,920 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,922 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:35,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,925 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,941 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,942 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,942 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,942 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17
[2020-09-25 10:56:35,942 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,943 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,943 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:35,943 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:35,943 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:35,944 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:35,983 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:35,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:35,990 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,995 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,995 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:35,996 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:35,996 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 10:56:35,996 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,996 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,997 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:35,997 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:35,997 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:35,998 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:56:36,050 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709846654]
[2020-09-25 10:56:36,053 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:36,054 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:36,055 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978914192]
[2020-09-25 10:56:36,065 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:36,065 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:36,084 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:36,086 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:36,090 INFO  L87              Difference]: Start difference. First operand 306 states. Second operand 8 states.
[2020-09-25 10:56:36,760 WARN  L193               SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:38,504 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:38,914 WARN  L193               SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:39,294 WARN  L193               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:39,728 WARN  L193               SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:40,087 WARN  L193               SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:40,420 WARN  L193               SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:40,734 WARN  L193               SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:42,010 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:42,010 INFO  L93              Difference]: Finished difference Result 634 states and 782 transitions.
[2020-09-25 10:56:42,016 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-25 10:56:42,018 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:42,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:42,044 INFO  L225             Difference]: With dead ends: 634
[2020-09-25 10:56:42,045 INFO  L226             Difference]: Without dead ends: 439
[2020-09-25 10:56:42,055 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 10:56:42,074 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 439 states.
[2020-09-25 10:56:42,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 394.
[2020-09-25 10:56:42,216 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 394 states.
[2020-09-25 10:56:42,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 449 transitions.
[2020-09-25 10:56:42,230 INFO  L78                 Accepts]: Start accepts. Automaton has 394 states and 449 transitions. Word has length 153
[2020-09-25 10:56:42,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:42,232 INFO  L479      AbstractCegarLoop]: Abstraction has 394 states and 449 transitions.
[2020-09-25 10:56:42,232 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:42,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 394 states and 449 transitions.
[2020-09-25 10:56:42,244 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 10:56:42,244 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:42,245 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]
[2020-09-25 10:56:42,245 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:42,245 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:42,247 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:42,247 INFO  L82        PathProgramCache]: Analyzing trace with hash -1073278774, now seen corresponding path program 1 times
[2020-09-25 10:56:42,247 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:42,248 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554409024]
[2020-09-25 10:56:42,248 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:42,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,373 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,475 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,651 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,256 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,320 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:47,321 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 10:56:47,321 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 10:56:47,321 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5001
[2020-09-25 10:56:47,321 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:47,322 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:47,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:47,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-25 10:56:47,322 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 69
[2020-09-25 10:56:47,322 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:47,618 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:47,619 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:47,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:47,703 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,951 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:47,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:47,952 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:47,952 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 288
[2020-09-25 10:56:47,952 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:47,953 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:47,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:47,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:47,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-25 10:56:47,954 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:47,994 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:47,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:47,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,999 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:47,999 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,000 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,000 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,000 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,001 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,003 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:48,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,005 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,007 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,008 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,008 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,008 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,008 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,009 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,009 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,010 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,011 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:48,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,014 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,019 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,019 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,020 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,020 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:56:48,020 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,020 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,021 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:48,021 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,023 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:48,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,026 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,028 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,028 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,029 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,029 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,029 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,029 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,029 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,030 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,030 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,038 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 10:56:48,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,041 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,047 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,048 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:48,048 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,048 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:48,048 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,049 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,049 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:48,049 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,051 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 10:56:48,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,054 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,055 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,055 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,055 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,056 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,056 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,056 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,056 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,057 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,058 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 10:56:48,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,061 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,062 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,062 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,062 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,063 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,063 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,063 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,063 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,064 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,064 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,066 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 10:56:48,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,068 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,070 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,070 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,070 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,070 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,070 FATAL L256   erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,071 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,071 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,072 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 10:56:48,101 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [554409024]
[2020-09-25 10:56:48,101 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:48,101 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 10:56:48,101 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507059175]
[2020-09-25 10:56:48,104 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 10:56:48,104 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:48,104 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 10:56:48,104 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:56:48,105 INFO  L87              Difference]: Start difference. First operand 394 states and 449 transitions. Second operand 5 states.
[2020-09-25 10:56:48,599 WARN  L193               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:49,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:49,792 INFO  L93              Difference]: Finished difference Result 728 states and 884 transitions.
[2020-09-25 10:56:49,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-25 10:56:49,793 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 159
[2020-09-25 10:56:49,793 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:49,802 INFO  L225             Difference]: With dead ends: 728
[2020-09-25 10:56:49,802 INFO  L226             Difference]: Without dead ends: 444
[2020-09-25 10:56:49,805 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 10:56:49,806 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2020-09-25 10:56:49,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 390.
[2020-09-25 10:56:49,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2020-09-25 10:56:49,891 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 440 transitions.
[2020-09-25 10:56:49,892 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 440 transitions. Word has length 159
[2020-09-25 10:56:49,892 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:49,893 INFO  L479      AbstractCegarLoop]: Abstraction has 390 states and 440 transitions.
[2020-09-25 10:56:49,893 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 10:56:49,893 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 440 transitions.
[2020-09-25 10:56:49,897 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2020-09-25 10:56:49,897 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 10:56:49,897 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 10:56:49,897 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:49,898 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:49,898 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:49,898 INFO  L82        PathProgramCache]: Analyzing trace with hash -342521873, now seen corresponding path program 1 times
[2020-09-25 10:56:49,898 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:49,899 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185765385]
[2020-09-25 10:56:49,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:49,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:49,974 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:49,974 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:49,980 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:50,009 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:50 BoogieIcfgContainer
[2020-09-25 10:56:50,010 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:50,012 INFO  L168              Benchmark]: Toolchain (without parser) took 22339.95 ms. Allocated memory was 147.8 MB in the beginning and 496.0 MB in the end (delta: 348.1 MB). Free memory was 103.1 MB in the beginning and 313.7 MB in the end (delta: -210.6 MB). Peak memory consumption was 137.6 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,013 INFO  L168              Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,014 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 716.04 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 174.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,015 INFO  L168              Benchmark]: Boogie Preprocessor took 116.87 ms. Allocated memory is still 205.0 MB. Free memory was 174.4 MB in the beginning and 170.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,017 INFO  L168              Benchmark]: RCFGBuilder took 1433.16 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 176.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,018 INFO  L168              Benchmark]: TraceAbstraction took 20063.86 ms. Allocated memory was 236.5 MB in the beginning and 496.0 MB in the end (delta: 259.5 MB). Free memory was 176.4 MB in the beginning and 313.7 MB in the end (delta: -137.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:50,022 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.33 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.1 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 716.04 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 174.4 MB in the end (delta: -72.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 116.87 ms. Allocated memory is still 205.0 MB. Free memory was 174.4 MB in the beginning and 170.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1433.16 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 170.5 MB in the beginning and 176.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 20063.86 ms. Allocated memory was 236.5 MB in the beginning and 496.0 MB in the end (delta: 259.5 MB). Free memory was 176.4 MB in the beginning and 313.7 MB in the end (delta: -137.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L209]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L415]              int pumpRunning  =    0;
[L416]              int systemActive  =    1;
[L672]              int waterLevel  =    1;
[L673]              int methaneLevelCritical  =    0;
[L761]              int cleanupTimeShifts  =    4;
[L837]              int retValue_acc ;
[L838]              int tmp ;
[L842]  FCALL       select_helpers()
[L843]  FCALL       select_features()
[L844]  CALL, EXPR  valid_product()
[L920]              int retValue_acc ;
[L923]              retValue_acc = 1
[L924]              return (retValue_acc);
[L844]  RET, EXPR   valid_product()
[L844]              tmp = valid_product()
[L846]  COND TRUE   \read(tmp)
[L848]  FCALL       setup()
[L849]  CALL        runTest()
[L828]  CALL        test()
[L607]              int splverifierCounter ;
[L608]              int tmp ;
[L609]              int tmp___0 ;
[L610]              int tmp___1 ;
[L611]              int tmp___2 ;
[L614]              splverifierCounter = 0
[L616]  COND TRUE   1
[L618]  COND TRUE   splverifierCounter < 4
[L624]              tmp = __VERIFIER_nondet_int()
[L626]  COND TRUE   \read(tmp)
[L628]  CALL        waterRise()
[L690]  COND TRUE   waterLevel < 2
[L691]              waterLevel = waterLevel + 1
[L628]  RET         waterRise()
[L634]              tmp___0 = __VERIFIER_nondet_int()
[L636]  COND FALSE  !(\read(tmp___0))
[L644]              tmp___2 = __VERIFIER_nondet_int()
[L646]  COND TRUE   \read(tmp___2)
[L659]  CALL        timeShift()
[L423]  COND FALSE  !(\read(pumpRunning))
[L430]  COND TRUE   \read(systemActive)
[L432]  CALL        processEnvironment()
[L478]              int tmp ;
[L481]  COND FALSE  !(\read(pumpRunning))
[L496]  CALL        processEnvironment__wrappee__lowWaterSensor()
[L452]              int tmp ;
[L455]  COND FALSE  !(\read(pumpRunning))
[L470]  FCALL       processEnvironment__wrappee__base()
[L496]  RET         processEnvironment__wrappee__lowWaterSensor()
[L432]  RET         processEnvironment()
[L438]  CALL        __utac_acc__Specification3_spec__1()
[L861]              int tmp ;
[L862]              int tmp___0 ;
[L863]              int tmp___1 ;
[L867]  CALL, EXPR  isMethaneLevelCritical()
[L711]              int retValue_acc ;
[L714]              retValue_acc = methaneLevelCritical
[L715]              return (retValue_acc);
[L867]  RET, EXPR   isMethaneLevelCritical()
[L867]              tmp = isMethaneLevelCritical()
[L869]  COND FALSE  !(\read(tmp))
[L873]  CALL, EXPR  getWaterLevel()
[L743]              int retValue_acc ;
[L746]              retValue_acc = waterLevel
[L747]              return (retValue_acc);
[L873]  RET, EXPR   getWaterLevel()
[L873]              tmp___0 = getWaterLevel()
[L875]  COND TRUE   tmp___0 == 2
[L877]  CALL, EXPR  isPumpRunning()
[L530]              int retValue_acc ;
[L533]              retValue_acc = pumpRunning
[L534]              return (retValue_acc);
[L877]  RET, EXPR   isPumpRunning()
[L877]              tmp___1 = isPumpRunning()
[L879]  COND FALSE  !(\read(tmp___1))
[L883]  CALL        __automaton_fail()
[L598]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 38 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 494 SDtfs, 828 SDslu, 701 SDs, 0 SdLazy, 1516 SolverSat, 259 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=394occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.2s InterpolantComputationTime, 493 NumberOfCodeBlocks, 493 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 129830 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...