/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=HIGHLEXORDER --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_product27.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:28:48,912 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:28:48,915 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:28:48,949 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:28:48,950 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:28:48,951 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:28:48,952 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:28:48,954 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:28:48,956 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:28:48,957 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:28:48,958 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:28:48,960 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:28:48,960 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:28:48,961 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:28:48,962 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:28:48,963 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:28:48,964 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:28:48,966 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:28:48,967 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:28:48,969 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:28:48,971 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:28:48,972 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:28:48,973 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:28:48,974 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:28:48,976 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:28:48,977 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:28:48,977 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:28:48,978 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:28:48,978 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:28:48,979 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:28:48,979 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:28:48,980 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:28:48,981 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:28:48,982 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:28:48,983 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:28:48,984 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:28:48,984 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:28:48,985 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:28:48,985 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:28:48,986 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:28:48,987 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:28:48,988 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 22:28:49,014 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 22:28:49,014 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:28:49,016 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:28:49,016 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 22:28:49,016 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 22:28:49,016 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:28:49,016 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 22:28:49,017 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 22:28:49,017 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 22:28:49,017 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 22:28:49,017 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:28:49,017 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:28:49,018 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:28:49,018 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 22:28:49,018 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 22:28:49,018 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 22:28:49,019 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:28:49,019 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:28:49,019 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 22:28:49,019 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 22:28:49,019 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 22:28:49,020 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:28:49,020 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:28:49,020 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:28:49,020 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:28:49,020 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 22:28:49,021 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:28:49,021 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:28:49,021 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 22:28:49,021 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true;
[2020-09-24 22:28:49,491 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:28:49,515 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:28:49,520 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:28:49,522 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 22:28:49,523 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 22:28:49,524 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c
[2020-09-24 22:28:49,613 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6df6f0bcf/1f857d5641e44db89f78f69656f32d84/FLAG5aa04f42f
[2020-09-24 22:28:50,204 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 22:28:50,205 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product27.cil.c
[2020-09-24 22:28:50,223 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6df6f0bcf/1f857d5641e44db89f78f69656f32d84/FLAG5aa04f42f
[2020-09-24 22:28:50,479 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6df6f0bcf/1f857d5641e44db89f78f69656f32d84
[2020-09-24 22:28:50,491 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:28:50,497 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:28:50,498 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:28:50,498 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:28:50,502 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:28:50,503 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:50" (1/1) ...
[2020-09-24 22:28:50,507 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c86c800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:50, skipping insertion in model container
[2020-09-24 22:28:50,508 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:50" (1/1) ...
[2020-09-24 22:28:50,516 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 22:28:50,566 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:28:51,083 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:28:51,097 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 22:28:51,220 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:28:51,256 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 22:28:51,256 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51 WrapperNode
[2020-09-24 22:28:51,256 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:28:51,257 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:28:51,258 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:28:51,258 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:28:51,272 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,272 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,293 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,294 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,333 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,352 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,363 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (1/1) ...
[2020-09-24 22:28:51,377 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:28:51,381 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:28:51,381 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:28:51,381 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:28:51,383 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (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 22:28:51,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:28:51,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:28:51,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 22:28:51,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 22:28:51,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 22:28:51,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 22:28:51,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 22:28:51,478 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 22:28:51,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 22:28:51,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 22:28:51,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 22:28:51,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 22:28:51,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 22:28:51,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 22:28:51,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 22:28:51,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 22:28:51,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 22:28:51,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 22:28:51,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 22:28:51,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 22:28:51,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 22:28:51,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 22:28:51,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 22:28:51,483 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 22:28:51,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 22:28:51,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 22:28:51,484 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 22:28:51,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 22:28:51,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 22:28:51,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 22:28:51,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 22:28:51,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 22:28:51,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 22:28:51,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 22:28:51,487 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 22:28:51,488 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 22:28:51,488 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 22:28:51,488 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 22:28:51,488 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 22:28:51,488 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 22:28:51,489 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 22:28:51,489 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 22:28:51,489 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 22:28:51,489 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 22:28:51,490 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 22:28:51,491 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 22:28:51,492 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 22:28:51,492 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 22:28:51,492 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 22:28:51,492 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 22:28:51,493 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 22:28:51,494 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 22:28:51,494 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 22:28:51,494 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 22:28:51,494 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 22:28:51,495 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 22:28:51,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 22:28:51,496 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:28:51,497 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 22:28:51,498 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:28:52,607 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:28:52,608 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 22:28:52,615 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:52 BoogieIcfgContainer
[2020-09-24 22:28:52,616 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:28:52,617 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:28:52,617 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:28:52,621 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:28:52,621 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:50" (1/3) ...
[2020-09-24 22:28:52,622 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcffce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:52, skipping insertion in model container
[2020-09-24 22:28:52,623 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:51" (2/3) ...
[2020-09-24 22:28:52,623 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcffce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:52, skipping insertion in model container
[2020-09-24 22:28:52,623 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:52" (3/3) ...
[2020-09-24 22:28:52,626 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c
[2020-09-24 22:28:52,638 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:28:52,649 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:28:52,672 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:28:52,706 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:28:52,707 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 22:28:52,707 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:28:52,707 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:28:52,707 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:28:52,707 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 22:28:52,708 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:28:52,708 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:28:52,738 INFO  L276                IsEmpty]: Start isEmpty. Operand 308 states.
[2020-09-24 22:28:52,758 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 22:28:52,758 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:28:52,760 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:28:52,760 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:28:52,768 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:28:52,769 INFO  L82        PathProgramCache]: Analyzing trace with hash 196536289, now seen corresponding path program 1 times
[2020-09-24 22:28:52,781 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:28:52,781 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051000999]
[2020-09-24 22:28:52,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:28:53,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:53,365 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:53,547 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:54,909 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,183 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,184 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 22:28:58,184 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:28:58,185 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5019
[2020-09-24 22:28:58,189 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,191 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 22:28:58,192 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,192 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-24 22:28:58,631 WARN  L193               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:28:58,637 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:28:58,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,680 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,793 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,793 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:28:58,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-24 22:28:58,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:28:58,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,871 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:28:58,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,875 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,878 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,878 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:28:58,878 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,878 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:28:58,879 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:28:58,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,879 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,882 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:28:58,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,883 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,888 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,889 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:28:58,889 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,889 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:28:58,889 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,889 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:28:58,890 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,890 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,892 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:28:58,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,894 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,899 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,899 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:28:58,899 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:28:58,900 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:28:58,900 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,902 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:28:58,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,904 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,906 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,906 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:28:58,906 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,906 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:28:58,906 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:28:58,907 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,907 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,908 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 22:28:58,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,911 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,913 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,913 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:28:58,913 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,914 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:28:58,914 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,914 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:28:58,915 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,915 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,917 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 22:28:58,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,921 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,923 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,923 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:28:58,923 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,924 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:28:58,924 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:28:58,924 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,925 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,927 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 22:28:58,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:28:58,932 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:28:58,935 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:28:58,935 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:28:58,935 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:28:58,935 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:28:58,935 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:28:58,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:28:58,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:28:58,936 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:28:58,936 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:28:58,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:28:58,972 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051000999]
[2020-09-24 22:28:58,974 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:28:58,975 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 22:28:58,976 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952867563]
[2020-09-24 22:28:58,984 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 22:28:58,984 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:28:59,001 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 22:28:59,003 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 22:28:59,005 INFO  L87              Difference]: Start difference. First operand 308 states. Second operand 3 states.
[2020-09-24 22:29:00,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:00,258 INFO  L93              Difference]: Finished difference Result 449 states and 536 transitions.
[2020-09-24 22:29:00,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-09-24 22:29:00,260 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 22:29:00,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:00,298 INFO  L225             Difference]: With dead ends: 449
[2020-09-24 22:29:00,298 INFO  L226             Difference]: Without dead ends: 282
[2020-09-24 22:29:00,304 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 22:29:00,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2020-09-24 22:29:00,402 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241.
[2020-09-24 22:29:00,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 241 states.
[2020-09-24 22:29:00,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions.
[2020-09-24 22:29:00,408 INFO  L78                 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153
[2020-09-24 22:29:00,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:00,414 INFO  L479      AbstractCegarLoop]: Abstraction has 241 states and 261 transitions.
[2020-09-24 22:29:00,414 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 22:29:00,414 INFO  L276                IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions.
[2020-09-24 22:29:00,420 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 22:29:00,421 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:00,421 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:29:00,421 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:29:00,422 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:00,425 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:00,425 INFO  L82        PathProgramCache]: Analyzing trace with hash 738994654, now seen corresponding path program 1 times
[2020-09-24 22:29:00,425 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:00,426 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926519438]
[2020-09-24 22:29:00,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:00,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:00,539 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:00,664 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:02,230 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,507 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,508 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 22:29:05,508 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:29:05,508 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5019
[2020-09-24 22:29:05,509 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:05,509 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 22:29:05,510 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 22:29:05,510 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:05,795 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:05,797 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:05,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,847 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,931 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,932 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:05,932 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,932 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 124
[2020-09-24 22:29:05,932 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:05,933 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,933 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,964 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:05,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,965 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,967 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,967 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:05,967 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,967 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:29:05,967 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:05,968 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,968 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,969 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:05,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,971 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,972 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:05,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,973 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:29:05,973 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,973 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:05,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,974 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,975 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:05,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,977 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,980 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,980 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:05,981 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,981 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:29:05,981 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,981 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:05,982 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,982 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,983 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:05,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,985 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,986 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,986 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:05,986 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,987 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 22:29:05,987 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:05,988 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,988 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,989 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 22:29:05,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,991 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,992 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,992 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:05,992 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,993 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:05,993 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:05,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:05,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:05,993 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:05,994 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:05,995 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 22:29:05,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:05,997 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:05,998 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:05,999 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:05,999 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:05,999 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:06,000 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:06,000 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:06,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:06,001 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:06,001 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:06,003 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 22:29:06,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:06,005 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:06,006 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:06,006 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:06,006 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:06,007 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:06,007 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:06,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:06,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:06,007 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:06,008 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:06,038 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:06,038 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926519438]
[2020-09-24 22:29:06,039 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:06,039 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 22:29:06,039 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460583333]
[2020-09-24 22:29:06,041 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 22:29:06,042 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:06,042 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 22:29:06,042 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 22:29:06,042 INFO  L87              Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states.
[2020-09-24 22:29:06,671 WARN  L193               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 22:29:07,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:07,590 INFO  L93              Difference]: Finished difference Result 360 states and 403 transitions.
[2020-09-24 22:29:07,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-24 22:29:07,591 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-24 22:29:07,592 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:07,596 INFO  L225             Difference]: With dead ends: 360
[2020-09-24 22:29:07,600 INFO  L226             Difference]: Without dead ends: 265
[2020-09-24 22:29:07,603 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 22:29:07,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2020-09-24 22:29:07,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231.
[2020-09-24 22:29:07,657 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 231 states.
[2020-09-24 22:29:07,658 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions.
[2020-09-24 22:29:07,659 INFO  L78                 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154
[2020-09-24 22:29:07,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:07,659 INFO  L479      AbstractCegarLoop]: Abstraction has 231 states and 248 transitions.
[2020-09-24 22:29:07,660 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 22:29:07,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions.
[2020-09-24 22:29:07,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-24 22:29:07,662 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:07,662 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]
[2020-09-24 22:29:07,663 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:29:07,663 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:07,663 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:07,663 INFO  L82        PathProgramCache]: Analyzing trace with hash 1017850899, now seen corresponding path program 1 times
[2020-09-24 22:29:07,664 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:07,664 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349473938]
[2020-09-24 22:29:07,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:07,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:07,755 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:08,762 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:11,984 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:11,984 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-24 22:29:11,985 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 22:29:11,985 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4275
[2020-09-24 22:29:11,986 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:11,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 22:29:11,986 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-24 22:29:11,987 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 98
[2020-09-24 22:29:11,987 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:12,381 WARN  L193               SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:12,382 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:12,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,466 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,681 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,681 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:12,681 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,681 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 250
[2020-09-24 22:29:12,682 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,682 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-24 22:29:12,683 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,722 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:12,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,724 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,727 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,727 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:12,727 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,727 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:12,727 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,728 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:12,728 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,729 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:12,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,731 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,733 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,734 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:12,734 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,734 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:12,734 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,735 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:12,735 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,736 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:12,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,739 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,744 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,744 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:12,744 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,745 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:29:12,745 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,745 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:12,746 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,747 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:12,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,749 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,753 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,753 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:12,753 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,754 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:12,754 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,754 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,755 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:12,755 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:29:12,757 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 22:29:12,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,759 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,762 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,762 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:12,762 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,762 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:29:12,763 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:12,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,763 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:12,764 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,765 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 22:29:12,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,768 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,776 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,776 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:12,777 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,777 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:29:12,777 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 22:29:12,777 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:12,778 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:12,778 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,804 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2020-09-24 22:29:12,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:12,806 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:12,808 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:12,808 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:12,808 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:12,808 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:12,809 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:12,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:12,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:12,809 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:12,809 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:12,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:12,859 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349473938]
[2020-09-24 22:29:12,859 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:12,859 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-24 22:29:12,860 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683324948]
[2020-09-24 22:29:12,861 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-24 22:29:12,861 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:12,861 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-24 22:29:12,861 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-24 22:29:12,862 INFO  L87              Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 8 states.
[2020-09-24 22:29:13,374 WARN  L193               SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:29:14,886 WARN  L193               SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:15,258 WARN  L193               SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:29:15,592 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:15,909 WARN  L193               SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:29:16,202 WARN  L193               SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 22:29:16,510 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:16,798 WARN  L193               SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 22:29:17,445 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:17,445 INFO  L93              Difference]: Finished difference Result 501 states and 581 transitions.
[2020-09-24 22:29:17,446 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2020-09-24 22:29:17,446 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 163
[2020-09-24 22:29:17,447 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:17,451 INFO  L225             Difference]: With dead ends: 501
[2020-09-24 22:29:17,451 INFO  L226             Difference]: Without dead ends: 380
[2020-09-24 22:29:17,452 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-24 22:29:17,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 380 states.
[2020-09-24 22:29:17,510 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 340.
[2020-09-24 22:29:17,511 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 340 states.
[2020-09-24 22:29:17,513 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 375 transitions.
[2020-09-24 22:29:17,513 INFO  L78                 Accepts]: Start accepts. Automaton has 340 states and 375 transitions. Word has length 163
[2020-09-24 22:29:17,514 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:17,514 INFO  L479      AbstractCegarLoop]: Abstraction has 340 states and 375 transitions.
[2020-09-24 22:29:17,514 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-24 22:29:17,515 INFO  L276                IsEmpty]: Start isEmpty. Operand 340 states and 375 transitions.
[2020-09-24 22:29:17,518 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 169
[2020-09-24 22:29:17,518 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:17,518 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]
[2020-09-24 22:29:17,519 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 22:29:17,519 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:17,519 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:17,519 INFO  L82        PathProgramCache]: Analyzing trace with hash 217466552, now seen corresponding path program 1 times
[2020-09-24 22:29:17,520 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:17,520 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515357911]
[2020-09-24 22:29:17,520 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:17,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:17,619 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:18,595 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:18,595 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 201
[2020-09-24 22:29:18,596 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:18,596 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 1026
[2020-09-24 22:29:18,596 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:18,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 22:29:18,596 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 22:29:18,597 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 22:29:18,597 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:18,877 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 22:29:18,878 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:29:18,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:18,940 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,131 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,132 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 22:29:19,132 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,132 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 223
[2020-09-24 22:29:19,132 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,133 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 22:29:19,133 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,184 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 22:29:19,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,187 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,189 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,189 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:19,189 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,189 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,190 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,190 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:19,190 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,192 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:29:19,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,193 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,195 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,196 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:19,196 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,196 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,196 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,197 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:19,197 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,198 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 22:29:19,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,201 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,207 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,208 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:19,208 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,208 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:29:19,208 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,208 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,209 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:29:19,209 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,211 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 22:29:19,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,213 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,215 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,215 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:29:19,215 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,216 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,216 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,216 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 22:29:19,217 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,225 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 22:29:19,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,227 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,232 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,233 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:29:19,233 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,233 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:29:19,234 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:29:19,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:29:19,234 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:29:19,235 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,237 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136
[2020-09-24 22:29:19,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,239 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,240 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,240 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:19,240 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,241 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,241 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:19,241 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:19,242 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:19,242 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,243 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146
[2020-09-24 22:29:19,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,245 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,247 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,247 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:19,247 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,247 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,247 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:19,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:19,248 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:19,248 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,250 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156
[2020-09-24 22:29:19,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:29:19,251 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:29:19,253 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:29:19,253 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:29:19,253 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:29:19,253 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:29:19,253 FATAL L256   erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:29:19,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:29:19,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 22:29:19,254 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:29:19,254 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:29:19,298 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:29:19,298 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515357911]
[2020-09-24 22:29:19,299 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:29:19,299 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 22:29:19,299 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551531772]
[2020-09-24 22:29:19,300 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 22:29:19,300 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:29:19,301 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 22:29:19,301 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 22:29:19,301 INFO  L87              Difference]: Start difference. First operand 340 states and 375 transitions. Second operand 5 states.
[2020-09-24 22:29:19,829 WARN  L193               SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 22:29:21,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:29:21,397 INFO  L93              Difference]: Finished difference Result 906 states and 1070 transitions.
[2020-09-24 22:29:21,398 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 22:29:21,398 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 168
[2020-09-24 22:29:21,399 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:29:21,406 INFO  L225             Difference]: With dead ends: 906
[2020-09-24 22:29:21,406 INFO  L226             Difference]: Without dead ends: 676
[2020-09-24 22:29:21,410 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 22:29:21,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 676 states.
[2020-09-24 22:29:21,534 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 571.
[2020-09-24 22:29:21,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 571 states.
[2020-09-24 22:29:21,538 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 647 transitions.
[2020-09-24 22:29:21,538 INFO  L78                 Accepts]: Start accepts. Automaton has 571 states and 647 transitions. Word has length 168
[2020-09-24 22:29:21,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:29:21,539 INFO  L479      AbstractCegarLoop]: Abstraction has 571 states and 647 transitions.
[2020-09-24 22:29:21,539 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 22:29:21,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 571 states and 647 transitions.
[2020-09-24 22:29:21,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 22:29:21,546 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 22:29:21,546 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]
[2020-09-24 22:29:21,546 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 22:29:21,546 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:29:21,547 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:29:21,547 INFO  L82        PathProgramCache]: Analyzing trace with hash 1541185143, now seen corresponding path program 1 times
[2020-09-24 22:29:21,547 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:29:21,547 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759669723]
[2020-09-24 22:29:21,548 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:29:21,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 22:29:21,609 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 22:29:21,609 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 22:29:21,615 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 22:29:21,641 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:29:21 BoogieIcfgContainer
[2020-09-24 22:29:21,641 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 22:29:21,643 INFO  L168              Benchmark]: Toolchain (without parser) took 31150.05 ms. Allocated memory was 139.5 MB in the beginning and 590.9 MB in the end (delta: 451.4 MB). Free memory was 102.1 MB in the beginning and 518.5 MB in the end (delta: -416.4 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,644 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,645 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 759.37 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 171.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,646 INFO  L168              Benchmark]: Boogie Preprocessor took 120.04 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,647 INFO  L168              Benchmark]: RCFGBuilder took 1234.99 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 177.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,647 INFO  L168              Benchmark]: TraceAbstraction took 29024.03 ms. Allocated memory was 234.9 MB in the beginning and 590.9 MB in the end (delta: 356.0 MB). Free memory was 176.2 MB in the beginning and 518.5 MB in the end (delta: -342.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
[2020-09-24 22:29:21,651 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 759.37 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 171.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 120.04 ms. Allocated memory is still 201.9 MB. Free memory was 171.0 MB in the beginning and 166.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1234.99 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 166.8 MB in the beginning and 177.6 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 29024.03 ms. Allocated memory was 234.9 MB in the beginning and 590.9 MB in the end (delta: 356.0 MB). Free memory was 176.2 MB in the beginning and 518.5 MB in the end (delta: -342.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 346]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L120]              int pumpRunning  =    0;
[L121]              int systemActive  =    1;
[L558]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L755]              int waterLevel  =    1;
[L756]              int methaneLevelCritical  =    0;
[L844]              int cleanupTimeShifts  =    4;
[L917]              int retValue_acc ;
[L918]              int tmp ;
[L922]  FCALL       select_helpers()
[L923]  FCALL       select_features()
[L924]  CALL, EXPR  valid_product()
[L380]              int retValue_acc ;
[L383]              retValue_acc = 1
[L384]              return (retValue_acc);
[L924]  RET, EXPR   valid_product()
[L924]              tmp = valid_product()
[L926]  COND TRUE   \read(tmp)
[L928]  FCALL       setup()
[L929]  CALL        runTest()
[L911]  CALL        test()
[L46]               int splverifierCounter ;
[L47]               int tmp ;
[L48]               int tmp___0 ;
[L49]               int tmp___1 ;
[L50]               int tmp___2 ;
[L53]               splverifierCounter = 0
[L55]   COND TRUE   1
[L57]   COND TRUE   splverifierCounter < 4
[L63]               tmp = __VERIFIER_nondet_int()
[L65]   COND TRUE   \read(tmp)
[L67]   CALL        waterRise()
[L773]  COND TRUE   waterLevel < 2
[L774]              waterLevel = waterLevel + 1
[L67]   RET         waterRise()
[L73]               tmp___0 = __VERIFIER_nondet_int()
[L75]   COND FALSE  !(\read(tmp___0))
[L83]               tmp___2 = __VERIFIER_nondet_int()
[L85]   COND TRUE   \read(tmp___2)
[L100]  CALL        timeShift()
[L128]  COND FALSE  !(\read(pumpRunning))
[L135]  COND TRUE   \read(systemActive)
[L137]  CALL        processEnvironment()
[L157]              int tmp ;
[L160]  COND FALSE  !(\read(pumpRunning))
[L175]  FCALL       processEnvironment__wrappee__base()
[L137]  RET         processEnvironment()
[L143]  CALL        __utac_acc__Specification3_spec__1()
[L309]              int tmp ;
[L310]              int tmp___0 ;
[L311]              int tmp___1 ;
[L315]  CALL, EXPR  isMethaneLevelCritical()
[L794]              int retValue_acc ;
[L797]              retValue_acc = methaneLevelCritical
[L798]              return (retValue_acc);
[L315]  RET, EXPR   isMethaneLevelCritical()
[L315]              tmp = isMethaneLevelCritical()
[L317]  COND FALSE  !(\read(tmp))
[L321]  CALL, EXPR  getWaterLevel()
[L826]              int retValue_acc ;
[L829]              retValue_acc = waterLevel
[L830]              return (retValue_acc);
[L321]  RET, EXPR   getWaterLevel()
[L321]              tmp___0 = getWaterLevel()
[L323]  COND TRUE   tmp___0 == 2
[L325]  CALL, EXPR  isPumpRunning()
[L227]              int retValue_acc ;
[L230]              retValue_acc = pumpRunning
[L231]              return (retValue_acc);
[L325]  RET, EXPR   isPumpRunning()
[L325]              tmp___1 = isPumpRunning()
[L327]  COND FALSE  !(\read(tmp___1))
[L331]  CALL        __automaton_fail()
[L346]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 39 procedures, 624 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 896 SDtfs, 998 SDslu, 794 SDs, 0 SdLazy, 1858 SolverSat, 305 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=571occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 220 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 250444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...