/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product44.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 07:33:16,917 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 07:33:16,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 07:33:16,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 07:33:16,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 07:33:16,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 07:33:16,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 07:33:16,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 07:33:16,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 07:33:16,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 07:33:16,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 07:33:16,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 07:33:16,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 07:33:16,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 07:33:16,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 07:33:16,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 07:33:16,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 07:33:16,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 07:33:16,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 07:33:16,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 07:33:16,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 07:33:16,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 07:33:16,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 07:33:16,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 07:33:16,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 07:33:16,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 07:33:16,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 07:33:16,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 07:33:16,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 07:33:16,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 07:33:16,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 07:33:16,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 07:33:16,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 07:33:16,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 07:33:16,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 07:33:16,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 07:33:16,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 07:33:17,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 07:33:17,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 07:33:17,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 07:33:17,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 07:33:17,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 07:33:17,058 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 07:33:17,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 07:33:17,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 07:33:17,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 07:33:17,061 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 07:33:17,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 07:33:17,062 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 07:33:17,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 07:33:17,062 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 07:33:17,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 07:33:17,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 07:33:17,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 07:33:17,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 07:33:17,064 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 07:33:17,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 07:33:17,065 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 07:33:17,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 07:33:17,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 07:33:17,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 07:33:17,066 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 07:33:17,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 07:33:17,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:33:17,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 07:33:17,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 07:33:17,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 07:33:17,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 07:33:17,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 07:33:17,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 07:33:17,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 07:33:17,068 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 07:33:17,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 07:33:17,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 07:33:17,591 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 07:33:17,593 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 07:33:17,593 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 07:33:17,594 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-25 07:33:17,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf62d455d/929963faa2e748e9a9507dc0b8b0e16d/FLAG10d6bd38f
[2020-09-25 07:33:18,239 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 07:33:18,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2020-09-25 07:33:18,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf62d455d/929963faa2e748e9a9507dc0b8b0e16d/FLAG10d6bd38f
[2020-09-25 07:33:18,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf62d455d/929963faa2e748e9a9507dc0b8b0e16d
[2020-09-25 07:33:18,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 07:33:18,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 07:33:18,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 07:33:18,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 07:33:18,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 07:33:18,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:18" (1/1) ...
[2020-09-25 07:33:18,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:18, skipping insertion in model container
[2020-09-25 07:33:18,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:33:18" (1/1) ...
[2020-09-25 07:33:18,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 07:33:18,630 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 07:33:19,274 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:33:19,298 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 07:33:19,403 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 07:33:19,440 INFO L208 MainTranslator]: Completed translation
[2020-09-25 07:33:19,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19 WrapperNode
[2020-09-25 07:33:19,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 07:33:19,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 07:33:19,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 07:33:19,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 07:33:19,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
[2020-09-25 07:33:19,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 07:33:19,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 07:33:19,537 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 07:33:19,537 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 07:33:19,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 07:33:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 07:33:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 07:33:19,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 07:33:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 07:33:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 07:33:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 07:33:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 07:33:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 07:33:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 07:33:19,623 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 07:33:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-25 07:33:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 07:33:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 07:33:19,624 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 07:33:19,625 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 07:33:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 07:33:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 07:33:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 07:33:19,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:33:19,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 07:33:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 07:33:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 07:33:19,629 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 07:33:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 07:33:19,630 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 07:33:19,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 07:33:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-25 07:33:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 07:33:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 07:33:19,632 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 07:33:19,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 07:33:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 07:33:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 07:33:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 07:33:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 07:33:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 07:33:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 07:33:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 07:33:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 07:33:19,635 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 07:33:19,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 07:33:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 07:33:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 07:33:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-25 07:33:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 07:33:19,637 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 07:33:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 07:33:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 07:33:19,638 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 07:33:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 07:33:19,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 07:33:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 07:33:19,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 07:33:19,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 07:33:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 07:33:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 07:33:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 07:33:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 07:33:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 07:33:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 07:33:19,643 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 07:33:19,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 07:33:20,884 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 07:33:20,885 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 07:33:20,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:20 BoogieIcfgContainer
[2020-09-25 07:33:20,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 07:33:20,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 07:33:20,901 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 07:33:20,905 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 07:33:20,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:33:18" (1/3) ...
[2020-09-25 07:33:20,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b69d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:20, skipping insertion in model container
[2020-09-25 07:33:20,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:33:19" (2/3) ...
[2020-09-25 07:33:20,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b69d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:33:20, skipping insertion in model container
[2020-09-25 07:33:20,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:33:20" (3/3) ...
[2020-09-25 07:33:20,911 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c
[2020-09-25 07:33:20,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 07:33:20,939 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 07:33:20,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 07:33:21,010 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 07:33:21,010 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 07:33:21,011 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 07:33:21,011 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 07:33:21,011 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 07:33:21,011 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 07:33:21,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 07:33:21,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 07:33:21,061 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states.
[2020-09-25 07:33:21,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 07:33:21,100 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:33:21,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:33:21,102 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:33:21,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:33:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash -266008754, now seen corresponding path program 1 times
[2020-09-25 07:33:21,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:33:21,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118545132]
[2020-09-25 07:33:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:33:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:21,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:21,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:23,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:26,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 07:33:26,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 07:33:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004
[2020-09-25 07:33:26,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:26,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 07:33:26,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 07:33:27,002 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 07:33:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:33:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 07:33:27,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119
[2020-09-25 07:33:27,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 07:33:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:27,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:27,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:27,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 07:33:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:27,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:27,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:27,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 07:33:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:27,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 07:33:27,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 07:33:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:27,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 07:33:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:27,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:27,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:27,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 07:33:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:27,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:27,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 07:33:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:27,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:27,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:27,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:27,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:27,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:27,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:27,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:27,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:27,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:27,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:27,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:33:27,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118545132]
[2020-09-25 07:33:27,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:33:27,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 07:33:27,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026910852]
[2020-09-25 07:33:27,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 07:33:27,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:33:27,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 07:33:27,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 07:33:27,333 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 3 states.
[2020-09-25 07:33:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:33:28,860 INFO L93 Difference]: Finished difference Result 506 states and 598 transitions.
[2020-09-25 07:33:28,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 07:33:28,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-25 07:33:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:33:28,884 INFO L225 Difference]: With dead ends: 506
[2020-09-25 07:33:28,884 INFO L226 Difference]: Without dead ends: 312
[2020-09-25 07:33:28,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 07:33:28,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2020-09-25 07:33:29,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268.
[2020-09-25 07:33:29,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states.
[2020-09-25 07:33:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions.
[2020-09-25 07:33:29,087 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 153
[2020-09-25 07:33:29,088 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:33:29,089 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions.
[2020-09-25 07:33:29,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 07:33:29,089 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions.
[2020-09-25 07:33:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-25 07:33:29,093 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:33:29,093 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]
[2020-09-25 07:33:29,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 07:33:29,094 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:33:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:33:29,094 INFO L82 PathProgramCache]: Analyzing trace with hash 579021377, now seen corresponding path program 1 times
[2020-09-25 07:33:29,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:33:29,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91775055]
[2020-09-25 07:33:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:33:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:29,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:30,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 07:33:34,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 07:33:34,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043
[2020-09-25 07:33:34,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 07:33:34,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 07:33:34,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,501 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 07:33:34,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:33:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 07:33:34,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95
[2020-09-25 07:33:34,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:34,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 07:33:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:34,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:34,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 07:33:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:34,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:33:34,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:34,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 07:33:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:34,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:33:34,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 07:33:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:34,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:33:34,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:34,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-25 07:33:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:34,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:34,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 07:33:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:34,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:34,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-25 07:33:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:34,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:34,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:34,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:34,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:34,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:34,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:34,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:34,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:34,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:34,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:33:34,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91775055]
[2020-09-25 07:33:34,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:33:34,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 07:33:34,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099224420]
[2020-09-25 07:33:34,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 07:33:34,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:33:34,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 07:33:34,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 07:33:34,770 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 4 states.
[2020-09-25 07:33:35,390 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 07:33:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:33:36,502 INFO L93 Difference]: Finished difference Result 410 states and 459 transitions.
[2020-09-25 07:33:36,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 07:33:36,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-25 07:33:36,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:33:36,508 INFO L225 Difference]: With dead ends: 410
[2020-09-25 07:33:36,508 INFO L226 Difference]: Without dead ends: 295
[2020-09-25 07:33:36,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:33:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states.
[2020-09-25 07:33:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 258.
[2020-09-25 07:33:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states.
[2020-09-25 07:33:36,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions.
[2020-09-25 07:33:36,561 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 154
[2020-09-25 07:33:36,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:33:36,562 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions.
[2020-09-25 07:33:36,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 07:33:36,562 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions.
[2020-09-25 07:33:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 07:33:36,564 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:33:36,565 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]
[2020-09-25 07:33:36,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 07:33:36,565 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:33:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:33:36,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1537433841, now seen corresponding path program 1 times
[2020-09-25 07:33:36,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:33:36,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388067786]
[2020-09-25 07:33:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:33:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:36,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:36,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:39,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:39,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 07:33:39,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 07:33:39,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3229
[2020-09-25 07:33:39,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:39,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 07:33:39,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 07:33:39,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,142 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 07:33:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:33:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 07:33:40,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-09-25 07:33:40,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 07:33:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:40,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:40,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 07:33:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:40,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:33:40,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 07:33:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:40,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:33:40,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 07:33:40,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 07:33:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:40,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 07:33:40,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 07:33:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 07:33:40,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:33:40,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:40,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:40,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 07:33:40,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 07:33:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:40,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 07:33:40,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 07:33:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:40,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:40,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:40,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 07:33:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:40,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:40,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:40,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:40,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:40,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:40,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:40,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:40,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:40,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:33:40,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388067786]
[2020-09-25 07:33:40,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:33:40,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 07:33:40,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831218574]
[2020-09-25 07:33:40,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 07:33:40,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:33:40,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 07:33:40,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 07:33:40,405 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 5 states.
[2020-09-25 07:33:41,184 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 07:33:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:33:43,710 INFO L93 Difference]: Finished difference Result 624 states and 716 transitions.
[2020-09-25 07:33:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 07:33:43,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167
[2020-09-25 07:33:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:33:43,719 INFO L225 Difference]: With dead ends: 624
[2020-09-25 07:33:43,719 INFO L226 Difference]: Without dead ends: 476
[2020-09-25 07:33:43,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 07:33:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states.
[2020-09-25 07:33:43,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 390.
[2020-09-25 07:33:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2020-09-25 07:33:43,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 427 transitions.
[2020-09-25 07:33:43,820 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 427 transitions. Word has length 167
[2020-09-25 07:33:43,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:33:43,821 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 427 transitions.
[2020-09-25 07:33:43,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 07:33:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 427 transitions.
[2020-09-25 07:33:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 07:33:43,824 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:33:43,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:33:43,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 07:33:43,825 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:33:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:33:43,826 INFO L82 PathProgramCache]: Analyzing trace with hash 868861772, now seen corresponding path program 1 times
[2020-09-25 07:33:43,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:33:43,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [762608784]
[2020-09-25 07:33:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:33:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:43,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:45,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:45,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205
[2020-09-25 07:33:45,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754
[2020-09-25 07:33:45,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:45,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 07:33:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 07:33:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-09-25 07:33:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,097 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 07:33:46,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 07:33:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 07:33:46,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320
[2020-09-25 07:33:46,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 07:33:46,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 07:33:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:46,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:46,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:33:46,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 07:33:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 07:33:46,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:33:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 07:33:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:46,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 07:33:46,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:33:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 07:33:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 07:33:46,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 07:33:46,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-09-25 07:33:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 07:33:46,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:33:46,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 07:33:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 07:33:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 07:33:46,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 07:33:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:33:46,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 07:33:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:46,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 07:33:46,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 07:33:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 07:33:46,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 07:33:46,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 07:33:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 07:33:46,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 07:33:46,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 07:33:46,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 07:33:46,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 07:33:46,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 07:33:46,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 07:33:46,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 07:33:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 07:33:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 07:33:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 07:33:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 07:33:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 07:33:46,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [762608784]
[2020-09-25 07:33:46,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 07:33:46,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 07:33:46,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548635115]
[2020-09-25 07:33:46,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 07:33:46,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 07:33:46,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 07:33:46,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 07:33:46,659 INFO L87 Difference]: Start difference. First operand 390 states and 427 transitions. Second operand 9 states.
[2020-09-25 07:33:47,176 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 07:33:48,923 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 07:33:49,233 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:33:49,614 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 07:33:49,975 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 07:33:50,272 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 07:33:50,623 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 07:33:50,935 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 07:33:52,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 07:33:52,038 INFO L93 Difference]: Finished difference Result 1036 states and 1223 transitions.
[2020-09-25 07:33:52,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 07:33:52,039 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172
[2020-09-25 07:33:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 07:33:52,046 INFO L225 Difference]: With dead ends: 1036
[2020-09-25 07:33:52,046 INFO L226 Difference]: Without dead ends: 756
[2020-09-25 07:33:52,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-25 07:33:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states.
[2020-09-25 07:33:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 657.
[2020-09-25 07:33:52,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states.
[2020-09-25 07:33:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 735 transitions.
[2020-09-25 07:33:52,139 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 735 transitions. Word has length 172
[2020-09-25 07:33:52,140 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 07:33:52,140 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 735 transitions.
[2020-09-25 07:33:52,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 07:33:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 735 transitions.
[2020-09-25 07:33:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 07:33:52,144 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 07:33:52,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 07:33:52,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 07:33:52,145 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 07:33:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 07:33:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1844704864, now seen corresponding path program 1 times
[2020-09-25 07:33:52,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 07:33:52,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1234921995]
[2020-09-25 07:33:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 07:33:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 07:33:52,209 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 07:33:52,209 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 07:33:52,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 07:33:52,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:33:52 BoogieIcfgContainer
[2020-09-25 07:33:52,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 07:33:52,244 INFO L168 Benchmark]: Toolchain (without parser) took 33705.93 ms. Allocated memory was 143.1 MB in the beginning and 575.7 MB in the end (delta: 432.5 MB). Free memory was 97.2 MB in the beginning and 186.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 343.4 MB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,245 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 116.5 MB in the beginning and 116.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.64 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 96.6 MB in the beginning and 171.7 MB in the end (delta: -75.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,247 INFO L168 Benchmark]: Boogie Preprocessor took 95.06 ms. Allocated memory is still 203.4 MB. Free memory was 171.7 MB in the beginning and 167.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,248 INFO L168 Benchmark]: RCFGBuilder took 1361.33 ms. Allocated memory was 203.4 MB in the beginning and 230.2 MB in the end (delta: 26.7 MB). Free memory was 167.4 MB in the beginning and 177.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,249 INFO L168 Benchmark]: TraceAbstraction took 31341.17 ms. Allocated memory was 230.2 MB in the beginning and 575.7 MB in the end (delta: 345.5 MB). Free memory was 176.0 MB in the beginning and 186.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 335.2 MB. Max. memory is 7.1 GB.
[2020-09-25 07:33:52,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 143.1 MB. Free memory was 116.5 MB in the beginning and 116.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 897.64 ms. Allocated memory was 143.1 MB in the beginning and 203.4 MB in the end (delta: 60.3 MB). Free memory was 96.6 MB in the beginning and 171.7 MB in the end (delta: -75.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 95.06 ms. Allocated memory is still 203.4 MB. Free memory was 171.7 MB in the beginning and 167.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1361.33 ms. Allocated memory was 203.4 MB in the beginning and 230.2 MB in the end (delta: 26.7 MB). Free memory was 167.4 MB in the beginning and 177.4 MB in the end (delta: -10.0 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 31341.17 ms. Allocated memory was 230.2 MB in the beginning and 575.7 MB in the end (delta: 345.5 MB). Free memory was 176.0 MB in the beginning and 186.3 MB in the end (delta: -10.4 MB). Peak memory consumption was 335.2 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L40] int cleanupTimeShifts = 4;
[L185] int waterLevel = 1;
[L186] int methaneLevelCritical = 0;
[L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L693] int pumpRunning = 0;
[L694] int systemActive = 1;
[L121] int retValue_acc ;
[L122] int tmp ;
[L126] FCALL select_helpers()
[L127] FCALL select_features()
[L128] CALL, EXPR valid_product()
[L305] int retValue_acc ;
[L308] retValue_acc = 1
[L309] return (retValue_acc);
[L128] RET, EXPR valid_product()
[L128] tmp = valid_product()
[L130] COND TRUE \read(tmp)
[L132] FCALL setup()
[L133] CALL runTest()
[L112] CALL test()
[L887] int splverifierCounter ;
[L888] int tmp ;
[L889] int tmp___0 ;
[L890] int tmp___1 ;
[L891] int tmp___2 ;
[L894] splverifierCounter = 0
[L896] COND TRUE 1
[L898] COND TRUE splverifierCounter < 4
[L904] tmp = __VERIFIER_nondet_int()
[L906] COND TRUE \read(tmp)
[L908] CALL waterRise()
[L203] COND TRUE waterLevel < 2
[L204] waterLevel = waterLevel + 1
[L908] RET waterRise()
[L914] tmp___0 = __VERIFIER_nondet_int()
[L916] COND FALSE !(\read(tmp___0))
[L924] tmp___2 = __VERIFIER_nondet_int()
[L926] COND FALSE !(\read(tmp___2))
[L932] tmp___1 = __VERIFIER_nondet_int()
[L934] COND TRUE \read(tmp___1)
[L936] CALL stopSystem()
[L866] COND FALSE !(\read(pumpRunning))
[L873] systemActive = 0
[L936] RET stopSystem()
[L943] CALL timeShift()
[L700] COND FALSE !(\read(pumpRunning))
[L707] COND FALSE !(\read(systemActive))
[L715] CALL __utac_acc__Specification3_spec__1()
[L149] int tmp ;
[L150] int tmp___0 ;
[L151] int tmp___1 ;
[L155] CALL, EXPR isMethaneLevelCritical()
[L224] int retValue_acc ;
[L227] retValue_acc = methaneLevelCritical
[L228] return (retValue_acc);
[L155] RET, EXPR isMethaneLevelCritical()
[L155] tmp = isMethaneLevelCritical()
[L157] COND FALSE !(\read(tmp))
[L161] CALL, EXPR getWaterLevel()
[L256] int retValue_acc ;
[L259] retValue_acc = waterLevel
[L260] return (retValue_acc);
[L161] RET, EXPR getWaterLevel()
[L161] tmp___0 = getWaterLevel()
[L163] COND TRUE tmp___0 == 2
[L165] CALL, EXPR isPumpRunning()
[L799] int retValue_acc ;
[L802] retValue_acc = pumpRunning
[L803] return (retValue_acc);
[L165] RET, EXPR isPumpRunning()
[L165] tmp___1 = isPumpRunning()
[L167] COND FALSE !(\read(tmp___1))
[L171] CALL __automaton_fail()
[L318] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 40 procedures, 631 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1033 SDtfs, 1252 SDslu, 873 SDs, 0 SdLazy, 2195 SolverSat, 402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 266 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 246314 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...