/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=0.6 --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_product22.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 06:23:13,533 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 06:23:13,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 06:23:13,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 06:23:13,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 06:23:13,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 06:23:13,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 06:23:13,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 06:23:13,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 06:23:13,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 06:23:13,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 06:23:13,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 06:23:13,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 06:23:13,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 06:23:13,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 06:23:13,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 06:23:13,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 06:23:13,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 06:23:13,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 06:23:13,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 06:23:13,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 06:23:13,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 06:23:13,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 06:23:13,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 06:23:13,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 06:23:13,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 06:23:13,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 06:23:13,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 06:23:13,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 06:23:13,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 06:23:13,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 06:23:13,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 06:23:13,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 06:23:13,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 06:23:13,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 06:23:13,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 06:23:13,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 06:23:13,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 06:23:13,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 06:23:13,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 06:23:13,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 06:23:13,654 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 06:23:13,692 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 06:23:13,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 06:23:13,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 06:23:13,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 06:23:13,694 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 06:23:13,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 06:23:13,695 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 06:23:13,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 06:23:13,695 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 06:23:13,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 06:23:13,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 06:23:13,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 06:23:13,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 06:23:13,696 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 06:23:13,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 06:23:13,696 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 06:23:13,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 06:23:13,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 06:23:13,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 06:23:13,697 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 06:23:13,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 06:23:13,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:23:13,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 06:23:13,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 06:23:13,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 06:23:13,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 06:23:13,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 06:23:13,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 06:23:13,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 06:23:13,699 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true;
[2020-09-25 06:23:14,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 06:23:14,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 06:23:14,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 06:23:14,176 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 06:23:14,177 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 06:23:14,178 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-09-25 06:23:14,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/612bd4741/b765c6c2e5f54fa6b9fe44abf0604d76/FLAG738febe66
[2020-09-25 06:23:14,897 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 06:23:14,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c
[2020-09-25 06:23:14,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/612bd4741/b765c6c2e5f54fa6b9fe44abf0604d76/FLAG738febe66
[2020-09-25 06:23:15,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/612bd4741/b765c6c2e5f54fa6b9fe44abf0604d76
[2020-09-25 06:23:15,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 06:23:15,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 06:23:15,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 06:23:15,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 06:23:15,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 06:23:15,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15, skipping insertion in model container
[2020-09-25 06:23:15,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 06:23:15,254 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 06:23:15,734 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:23:15,749 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 06:23:15,833 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:23:15,876 INFO L208 MainTranslator]: Completed translation
[2020-09-25 06:23:15,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15 WrapperNode
[2020-09-25 06:23:15,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 06:23:15,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 06:23:15,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 06:23:15,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 06:23:15,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (1/1) ...
[2020-09-25 06:23:15,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 06:23:15,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 06:23:15,986 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 06:23:15,986 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 06:23:15,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (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 06:23:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 06:23:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 06:23:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:23:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 06:23:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 06:23:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 06:23:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 06:23:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 06:23:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 06:23:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 06:23:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 06:23:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 06:23:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 06:23:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 06:23:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 06:23:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 06:23:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 06:23:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 06:23:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 06:23:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 06:23:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 06:23:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 06:23:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 06:23:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 06:23:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 06:23:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 06:23:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 06:23:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 06:23:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 06:23:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 06:23:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 06:23:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 06:23:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 06:23:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 06:23:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 06:23:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 06:23:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 06:23:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 06:23:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 06:23:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 06:23:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 06:23:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 06:23:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 06:23:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 06:23:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 06:23:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 06:23:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor
[2020-09-25 06:23:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 06:23:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 06:23:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 06:23:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 06:23:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 06:23:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 06:23:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 06:23:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 06:23:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 06:23:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 06:23:17,311 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 06:23:17,312 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 06:23:17,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:17 BoogieIcfgContainer
[2020-09-25 06:23:17,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 06:23:17,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 06:23:17,321 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 06:23:17,325 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 06:23:17,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:15" (1/3) ...
[2020-09-25 06:23:17,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34987682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:17, skipping insertion in model container
[2020-09-25 06:23:17,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:15" (2/3) ...
[2020-09-25 06:23:17,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34987682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:17, skipping insertion in model container
[2020-09-25 06:23:17,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:17" (3/3) ...
[2020-09-25 06:23:17,329 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c
[2020-09-25 06:23:17,339 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 06:23:17,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 06:23:17,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 06:23:17,400 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 06:23:17,401 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 06:23:17,401 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 06:23:17,401 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 06:23:17,401 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 06:23:17,401 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 06:23:17,401 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 06:23:17,402 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 06:23:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states.
[2020-09-25 06:23:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 06:23:17,449 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:17,451 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 06:23:17,451 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:17,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:17,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times
[2020-09-25 06:23:17,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:17,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650175655]
[2020-09-25 06:23:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:18,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:18,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:19,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:22,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:22,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 06:23:22,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 06:23:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074
[2020-09-25 06:23:22,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:22,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 06:23:22,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 06:23:23,541 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:23:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:23:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:23:23,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150
[2020-09-25 06:23:23,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:23:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:23,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:23,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:23:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:23,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:23,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:23:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 06:23:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:23:23,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:23:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:23,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:23,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:23,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 06:23:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:23,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:23:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:23,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:23,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:23,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:23,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 06:23:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:23,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:23,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:23,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:23,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:24,058 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 06:23:24,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650175655]
[2020-09-25 06:23:24,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:23:24,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 06:23:24,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134828930]
[2020-09-25 06:23:24,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 06:23:24,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:23:24,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 06:23:24,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:23:24,095 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states.
[2020-09-25 06:23:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:23:25,573 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions.
[2020-09-25 06:23:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 06:23:25,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-25 06:23:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:23:25,597 INFO L225 Difference]: With dead ends: 486
[2020-09-25 06:23:25,597 INFO L226 Difference]: Without dead ends: 301
[2020-09-25 06:23:25,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:23:25,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2020-09-25 06:23:25,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259.
[2020-09-25 06:23:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states.
[2020-09-25 06:23:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions.
[2020-09-25 06:23:25,776 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153
[2020-09-25 06:23:25,779 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:23:25,779 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions.
[2020-09-25 06:23:25,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 06:23:25,783 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions.
[2020-09-25 06:23:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-25 06:23:25,797 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:25,798 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 06:23:25,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 06:23:25,798 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:25,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:25,799 INFO L82 PathProgramCache]: Analyzing trace with hash -197104449, now seen corresponding path program 1 times
[2020-09-25 06:23:25,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:25,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363211599]
[2020-09-25 06:23:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:26,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:30,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:30,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 06:23:30,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 06:23:30,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044
[2020-09-25 06:23:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:30,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 06:23:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 06:23:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,214 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:23:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:23:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:23:31,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102
[2020-09-25 06:23:31,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:23:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:31,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:31,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:31,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:23:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:31,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:31,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:23:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:31,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:31,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:31,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:23:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-25 06:23:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:31,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:31,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:31,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 06:23:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:31,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:31,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:31,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:23:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-25 06:23:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:31,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:31,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:31,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:31,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:31,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:31,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:31,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:31,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:31,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:31,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:31,458 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 06:23:31,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363211599]
[2020-09-25 06:23:31,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:23:31,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 06:23:31,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440318128]
[2020-09-25 06:23:31,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 06:23:31,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:23:31,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 06:23:31,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 06:23:31,465 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states.
[2020-09-25 06:23:32,157 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:23:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:23:33,240 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions.
[2020-09-25 06:23:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 06:23:33,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-25 06:23:33,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:23:33,245 INFO L225 Difference]: With dead ends: 399
[2020-09-25 06:23:33,245 INFO L226 Difference]: Without dead ends: 284
[2020-09-25 06:23:33,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:23:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2020-09-25 06:23:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249.
[2020-09-25 06:23:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-25 06:23:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions.
[2020-09-25 06:23:33,291 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154
[2020-09-25 06:23:33,291 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:23:33,292 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions.
[2020-09-25 06:23:33,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 06:23:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions.
[2020-09-25 06:23:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 06:23:33,295 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:33,295 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 06:23:33,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 06:23:33,296 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:33,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:33,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2051029771, now seen corresponding path program 1 times
[2020-09-25 06:23:33,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:33,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755706189]
[2020-09-25 06:23:33,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:33,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:33,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 06:23:36,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:23:36,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2910
[2020-09-25 06:23:36,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:36,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 06:23:36,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 06:23:36,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,596 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:23:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:23:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:23:36,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94
[2020-09-25 06:23:36,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:23:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:36,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:23:36,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:23:36,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:23:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:23:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:23:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:36,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:36,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:23:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:23:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:36,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:36,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:23:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:23:36,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:23:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 06:23:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 06:23:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:36,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:36,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:36,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:23:36,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 06:23:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:36,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:23:36,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 06:23:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:36,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:36,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:36,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:36,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:36,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:36,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:36,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:36,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:36,852 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 06:23:36,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755706189]
[2020-09-25 06:23:36,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:23:36,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 06:23:36,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931520283]
[2020-09-25 06:23:36,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 06:23:36,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:23:36,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 06:23:36,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:23:36,857 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states.
[2020-09-25 06:23:37,364 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:23:38,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:23:38,401 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions.
[2020-09-25 06:23:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 06:23:38,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167
[2020-09-25 06:23:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:23:38,406 INFO L225 Difference]: With dead ends: 445
[2020-09-25 06:23:38,406 INFO L226 Difference]: Without dead ends: 306
[2020-09-25 06:23:38,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-25 06:23:38,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states.
[2020-09-25 06:23:38,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249.
[2020-09-25 06:23:38,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-25 06:23:38,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions.
[2020-09-25 06:23:38,443 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167
[2020-09-25 06:23:38,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:23:38,444 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions.
[2020-09-25 06:23:38,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 06:23:38,444 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions.
[2020-09-25 06:23:38,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 06:23:38,447 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:38,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:23:38,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 06:23:38,447 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:38,448 INFO L82 PathProgramCache]: Analyzing trace with hash -292228132, now seen corresponding path program 1 times
[2020-09-25 06:23:38,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:38,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596707911]
[2020-09-25 06:23:38,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:38,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:40,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:40,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219
[2020-09-25 06:23:40,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:40,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1758
[2020-09-25 06:23:40,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:40,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 06:23:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 06:23:40,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126
[2020-09-25 06:23:40,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:40,691 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:23:40,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:23:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:40,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:40,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233
[2020-09-25 06:23:40,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:40,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:40,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 06:23:40,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:23:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:41,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:23:41,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:23:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:41,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:41,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:23:41,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:23:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:41,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 06:23:41,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:23:41,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:23:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:41,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:41,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:23:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:23:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:23:41,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:41,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 06:23:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:23:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 06:23:41,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:41,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 06:23:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:23:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 06:23:41,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:41,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:41,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:23:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:41,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:41,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-25 06:23:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:41,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:41,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:23:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:23:41,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2020-09-25 06:23:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:41,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 06:23:41,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 06:23:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:23:41,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-09-25 06:23:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:41,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:41,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:41,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:41,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:41,218 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 06:23:41,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596707911]
[2020-09-25 06:23:41,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:23:41,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 06:23:41,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878348925]
[2020-09-25 06:23:41,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 06:23:41,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:23:41,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 06:23:41,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-25 06:23:41,221 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states.
[2020-09-25 06:23:41,807 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:23:44,299 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:23:44,727 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:23:45,080 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:23:45,392 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 06:23:45,694 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:23:46,194 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:23:46,502 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:23:46,818 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:23:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:23:47,621 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions.
[2020-09-25 06:23:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2020-09-25 06:23:47,621 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180
[2020-09-25 06:23:47,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:23:47,628 INFO L225 Difference]: With dead ends: 697
[2020-09-25 06:23:47,628 INFO L226 Difference]: Without dead ends: 558
[2020-09-25 06:23:47,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552
[2020-09-25 06:23:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states.
[2020-09-25 06:23:47,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385.
[2020-09-25 06:23:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states.
[2020-09-25 06:23:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions.
[2020-09-25 06:23:47,704 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180
[2020-09-25 06:23:47,704 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:23:47,705 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions.
[2020-09-25 06:23:47,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 06:23:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions.
[2020-09-25 06:23:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 06:23:47,708 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:47,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:23:47,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 06:23:47,709 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:47,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times
[2020-09-25 06:23:47,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:47,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812892364]
[2020-09-25 06:23:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 06:23:47,775 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 06:23:47,775 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 06:23:47,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 06:23:47,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:23:47 BoogieIcfgContainer
[2020-09-25 06:23:47,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 06:23:47,809 INFO L168 Benchmark]: Toolchain (without parser) took 32632.02 ms. Allocated memory was 146.3 MB in the beginning and 597.7 MB in the end (delta: 451.4 MB). Free memory was 102.1 MB in the beginning and 401.9 MB in the end (delta: -299.8 MB). Peak memory consumption was 151.6 MB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,810 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.09 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 173.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,812 INFO L168 Benchmark]: Boogie Preprocessor took 107.53 ms. Allocated memory is still 205.0 MB. Free memory was 173.2 MB in the beginning and 169.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,813 INFO L168 Benchmark]: RCFGBuilder took 1333.80 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.1 MB in the beginning and 177.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,814 INFO L168 Benchmark]: TraceAbstraction took 30486.33 ms. Allocated memory was 237.0 MB in the beginning and 597.7 MB in the end (delta: 360.7 MB). Free memory was 177.2 MB in the beginning and 401.9 MB in the end (delta: -224.7 MB). Peak memory consumption was 136.0 MB. Max. memory is 7.1 GB.
[2020-09-25 06:23:47,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 695.09 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 101.4 MB in the beginning and 173.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 107.53 ms. Allocated memory is still 205.0 MB. Free memory was 173.2 MB in the beginning and 169.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1333.80 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.1 MB in the beginning and 177.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 30486.33 ms. Allocated memory was 237.0 MB in the beginning and 597.7 MB in the end (delta: 360.7 MB). Free memory was 177.2 MB in the beginning and 401.9 MB in the end (delta: -224.7 MB). Peak memory consumption was 136.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L47] int waterLevel = 1;
[L48] int methaneLevelCritical = 0;
[L145] int cleanupTimeShifts = 4;
[L286] int pumpRunning = 0;
[L287] int systemActive = 1;
[L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L224] int retValue_acc ;
[L225] int tmp ;
[L229] FCALL select_helpers()
[L230] FCALL select_features()
[L231] CALL, EXPR valid_product()
[L273] int retValue_acc ;
[L276] retValue_acc = 1
[L277] return (retValue_acc);
[L231] RET, EXPR valid_product()
[L231] tmp = valid_product()
[L233] COND TRUE \read(tmp)
[L235] FCALL setup()
[L236] CALL runTest()
[L215] CALL test()
[L474] int splverifierCounter ;
[L475] int tmp ;
[L476] int tmp___0 ;
[L477] int tmp___1 ;
[L478] int tmp___2 ;
[L481] splverifierCounter = 0
[L483] COND TRUE 1
[L485] COND TRUE splverifierCounter < 4
[L491] tmp = __VERIFIER_nondet_int()
[L493] COND TRUE \read(tmp)
[L495] CALL waterRise()
[L65] COND TRUE waterLevel < 2
[L66] waterLevel = waterLevel + 1
[L495] RET waterRise()
[L501] tmp___0 = __VERIFIER_nondet_int()
[L503] COND FALSE !(\read(tmp___0))
[L511] tmp___2 = __VERIFIER_nondet_int()
[L513] COND TRUE \read(tmp___2)
[L515] CALL startSystem()
[L468] systemActive = 1
[L515] RET startSystem()
[L528] CALL timeShift()
[L294] COND FALSE !(\read(pumpRunning))
[L301] COND TRUE \read(systemActive)
[L303] CALL processEnvironment()
[L349] int tmp ;
[L352] COND FALSE !(\read(pumpRunning))
[L367] CALL processEnvironment__wrappee__lowWaterSensor()
[L323] int tmp ;
[L326] COND FALSE !(\read(pumpRunning))
[L341] FCALL processEnvironment__wrappee__base()
[L367] RET processEnvironment__wrappee__lowWaterSensor()
[L303] RET processEnvironment()
[L309] CALL __utac_acc__Specification3_spec__1()
[L907] int tmp ;
[L908] int tmp___0 ;
[L909] int tmp___1 ;
[L913] CALL, EXPR isMethaneLevelCritical()
[L86] int retValue_acc ;
[L89] retValue_acc = methaneLevelCritical
[L90] return (retValue_acc);
[L913] RET, EXPR isMethaneLevelCritical()
[L913] tmp = isMethaneLevelCritical()
[L915] COND FALSE !(\read(tmp))
[L919] CALL, EXPR getWaterLevel()
[L118] int retValue_acc ;
[L121] retValue_acc = waterLevel
[L122] return (retValue_acc);
[L919] RET, EXPR getWaterLevel()
[L919] tmp___0 = getWaterLevel()
[L921] COND TRUE tmp___0 == 2
[L923] CALL, EXPR isPumpRunning()
[L401] int retValue_acc ;
[L404] retValue_acc = pumpRunning
[L405] return (retValue_acc);
[L923] RET, EXPR isPumpRunning()
[L923] tmp___1 = isPumpRunning()
[L925] COND FALSE !(\read(tmp___1))
[L929] CALL __automaton_fail()
[L140] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1447 SDslu, 930 SDs, 0 SdLazy, 2303 SolverSat, 495 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 650 ConstructedInterpolants, 0 QuantifiedInterpolants, 260063 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...