/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_product30.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 06:23:44,631 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 06:23:44,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 06:23:44,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 06:23:44,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 06:23:44,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 06:23:44,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 06:23:44,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 06:23:44,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 06:23:44,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 06:23:44,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 06:23:44,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 06:23:44,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 06:23:44,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 06:23:44,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 06:23:44,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 06:23:44,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 06:23:44,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 06:23:44,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 06:23:44,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 06:23:44,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 06:23:44,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 06:23:44,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 06:23:44,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 06:23:44,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 06:23:44,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 06:23:44,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 06:23:44,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 06:23:44,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 06:23:44,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 06:23:44,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 06:23:44,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 06:23:44,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 06:23:44,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 06:23:44,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 06:23:44,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 06:23:44,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 06:23:44,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 06:23:44,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 06:23:44,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 06:23:44,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 06:23:44,767 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 06:23:44,811 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 06:23:44,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 06:23:44,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 06:23:44,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 06:23:44,814 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 06:23:44,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 06:23:44,815 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 06:23:44,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 06:23:44,815 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 06:23:44,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 06:23:44,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 06:23:44,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 06:23:44,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 06:23:44,817 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 06:23:44,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 06:23:44,818 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 06:23:44,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 06:23:44,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 06:23:44,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 06:23:44,819 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 06:23:44,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 06:23:44,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:23:44,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 06:23:44,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 06:23:44,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 06:23:44,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 06:23:44,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 06:23:44,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 06:23:44,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 06:23:44,821 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 06:23:45,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 06:23:45,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 06:23:45,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 06:23:45,320 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 06:23:45,320 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 06:23:45,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-25 06:23:45,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5984a4f9/3b0a54bd581c44209c08c1f7ff40ed3f/FLAG524a07275
[2020-09-25 06:23:46,082 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 06:23:46,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c
[2020-09-25 06:23:46,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5984a4f9/3b0a54bd581c44209c08c1f7ff40ed3f/FLAG524a07275
[2020-09-25 06:23:46,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b5984a4f9/3b0a54bd581c44209c08c1f7ff40ed3f
[2020-09-25 06:23:46,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 06:23:46,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 06:23:46,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 06:23:46,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 06:23:46,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 06:23:46,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:46" (1/1) ...
[2020-09-25 06:23:46,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:46, skipping insertion in model container
[2020-09-25 06:23:46,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:46" (1/1) ...
[2020-09-25 06:23:46,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 06:23:46,401 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 06:23:46,796 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:23:46,815 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 06:23:47,051 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:23:47,089 INFO L208 MainTranslator]: Completed translation
[2020-09-25 06:23:47,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47 WrapperNode
[2020-09-25 06:23:47,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 06:23:47,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 06:23:47,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 06:23:47,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 06:23:47,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (1/1) ...
[2020-09-25 06:23:47,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 06:23:47,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 06:23:47,223 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 06:23:47,224 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 06:23:47,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (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 06:23:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 06:23:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 06:23:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:23:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 06:23:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 06:23:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 06:23:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 06:23:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 06:23:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 06:23:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 06:23:47,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 06:23:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 06:23:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 06:23:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 06:23:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 06:23:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 06:23:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 06:23:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:23:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 06:23:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 06:23:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 06:23:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 06:23:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 06:23:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 06:23:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 06:23:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 06:23:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 06:23:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 06:23:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 06:23:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 06:23:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 06:23:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 06:23:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 06:23:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 06:23:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 06:23:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 06:23:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 06:23:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 06:23:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 06:23:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 06:23:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 06:23:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 06:23:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 06:23:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 06:23:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 06:23:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 06:23:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 06:23:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 06:23:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 06:23:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 06:23:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 06:23:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 06:23:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 06:23:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 06:23:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 06:23:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 06:23:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 06:23:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 06:23:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 06:23:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 06:23:48,626 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 06:23:48,626 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 06:23:48,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:48 BoogieIcfgContainer
[2020-09-25 06:23:48,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 06:23:48,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 06:23:48,635 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 06:23:48,639 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 06:23:48,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:46" (1/3) ...
[2020-09-25 06:23:48,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631654a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:48, skipping insertion in model container
[2020-09-25 06:23:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:47" (2/3) ...
[2020-09-25 06:23:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631654a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:48, skipping insertion in model container
[2020-09-25 06:23:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:48" (3/3) ...
[2020-09-25 06:23:48,644 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c
[2020-09-25 06:23:48,657 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 06:23:48,669 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 06:23:48,693 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 06:23:48,730 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 06:23:48,730 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 06:23:48,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 06:23:48,731 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 06:23:48,731 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 06:23:48,731 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 06:23:48,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 06:23:48,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 06:23:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states.
[2020-09-25 06:23:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 06:23:48,783 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:48,784 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 06:23:48,785 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2091214271, now seen corresponding path program 1 times
[2020-09-25 06:23:48,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:48,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134583688]
[2020-09-25 06:23:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:49,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:51,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 06:23:54,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 06:23:54,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061
[2020-09-25 06:23:54,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 06:23:54,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 06:23:54,678 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:23:54,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:23:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:23:54,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123
[2020-09-25 06:23:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:23:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:54,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:54,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:54,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:23:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:54,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:54,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:54,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:23:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:54,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:54,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:54,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:23:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:23:54,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:54,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:23:54,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 06:23:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:54,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:23:54,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:54,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:23:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:54,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:23:54,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 06:23:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:54,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:54,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:23:54,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:23:54,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:23:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:23:54,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:23:54,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:23:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:23:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:23:54,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:23:54,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:23:54,964 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 06:23:54,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134583688]
[2020-09-25 06:23:54,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:23:54,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 06:23:54,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892332858]
[2020-09-25 06:23:54,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 06:23:54,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:23:54,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 06:23:54,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:23:54,999 INFO L87 Difference]: Start difference. First operand 320 states. Second operand 3 states.
[2020-09-25 06:23:56,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:23:56,448 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions.
[2020-09-25 06:23:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 06:23:56,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-25 06:23:56,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:23:56,471 INFO L225 Difference]: With dead ends: 486
[2020-09-25 06:23:56,471 INFO L226 Difference]: Without dead ends: 301
[2020-09-25 06:23:56,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 06:23:56,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states.
[2020-09-25 06:23:56,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259.
[2020-09-25 06:23:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states.
[2020-09-25 06:23:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions.
[2020-09-25 06:23:56,604 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153
[2020-09-25 06:23:56,606 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:23:56,612 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions.
[2020-09-25 06:23:56,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 06:23:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions.
[2020-09-25 06:23:56,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-25 06:23:56,622 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:23:56,623 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 06:23:56,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 06:23:56,623 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:23:56,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:23:56,627 INFO L82 PathProgramCache]: Analyzing trace with hash 770712739, now seen corresponding path program 1 times
[2020-09-25 06:23:56,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:23:56,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7616389]
[2020-09-25 06:23:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:23:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:23:56,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:56,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:23:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:01,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:01,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 06:24:01,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 06:24:01,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033
[2020-09-25 06:24:01,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:01,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:01,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 06:24:01,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 06:24:01,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,149 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:24:02,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:24:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:24:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96
[2020-09-25 06:24:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:24:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:02,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:02,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:02,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:24:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:02,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:24:02,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:24:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:02,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:24:02,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:24:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:02,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:02,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-25 06:24:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:02,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:02,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:02,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 06:24:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:02,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:02,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:02,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-25 06:24:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:02,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:02,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:02,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:02,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:02,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:02,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 06:24:02,383 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 06:24:02,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7616389]
[2020-09-25 06:24:02,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:24:02,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 06:24:02,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356495716]
[2020-09-25 06:24:02,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 06:24:02,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:24:02,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 06:24:02,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 06:24:02,388 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states.
[2020-09-25 06:24:03,088 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 06:24:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:24:04,121 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions.
[2020-09-25 06:24:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 06:24:04,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-25 06:24:04,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:24:04,127 INFO L225 Difference]: With dead ends: 399
[2020-09-25 06:24:04,127 INFO L226 Difference]: Without dead ends: 284
[2020-09-25 06:24:04,129 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 06:24:04,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2020-09-25 06:24:04,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249.
[2020-09-25 06:24:04,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-25 06:24:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions.
[2020-09-25 06:24:04,176 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154
[2020-09-25 06:24:04,176 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:24:04,177 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions.
[2020-09-25 06:24:04,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 06:24:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions.
[2020-09-25 06:24:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 06:24:04,179 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:24:04,180 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 06:24:04,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 06:24:04,180 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:24:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:24:04,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1092236248, now seen corresponding path program 1 times
[2020-09-25 06:24:04,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:24:04,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340165941]
[2020-09-25 06:24:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:24:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:04,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:04,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 06:24:07,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:24:07,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2798
[2020-09-25 06:24:07,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:07,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 06:24:07,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 06:24:07,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,329 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:24:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:24:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:24:07,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92
[2020-09-25 06:24:07,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:24:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:07,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:24:07,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:24:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:07,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:07,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:24:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:07,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:24:07,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 06:24:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:24:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:07,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:24:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:24:07,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:24:07,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:07,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 06:24:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 06:24:07,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:07,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:24:07,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:07,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 06:24:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:07,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:07,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:07,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:07,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 06:24:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:07,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:07,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:07,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:07,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:07,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:07,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:07,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 35
[2020-09-25 06:24:07,618 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 06:24:07,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1340165941]
[2020-09-25 06:24:07,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:24:07,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 06:24:07,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024702936]
[2020-09-25 06:24:07,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 06:24:07,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:24:07,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 06:24:07,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:24:07,622 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 5 states.
[2020-09-25 06:24:08,133 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:24:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:24:09,125 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions.
[2020-09-25 06:24:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 06:24:09,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167
[2020-09-25 06:24:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:24:09,130 INFO L225 Difference]: With dead ends: 445
[2020-09-25 06:24:09,130 INFO L226 Difference]: Without dead ends: 306
[2020-09-25 06:24:09,132 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 06:24:09,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states.
[2020-09-25 06:24:09,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249.
[2020-09-25 06:24:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-25 06:24:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions.
[2020-09-25 06:24:09,172 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167
[2020-09-25 06:24:09,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:24:09,173 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions.
[2020-09-25 06:24:09,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 06:24:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions.
[2020-09-25 06:24:09,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 06:24:09,176 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:24:09,177 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 06:24:09,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 06:24:09,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:24:09,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:24:09,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1656489563, now seen corresponding path program 1 times
[2020-09-25 06:24:09,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:24:09,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546813992]
[2020-09-25 06:24:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:24:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:10,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:10,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219
[2020-09-25 06:24:10,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1635
[2020-09-25 06:24:10,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:10,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 06:24:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77
[2020-09-25 06:24:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126
[2020-09-25 06:24:10,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:24:11,320 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 06:24:11,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:24:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 06:24:11,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297
[2020-09-25 06:24:11,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73
[2020-09-25 06:24:11,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 06:24:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:24:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:24:11,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 06:24:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:11,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:11,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:24:11,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 06:24:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:11,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 06:24:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:24:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 06:24:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:11,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:11,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 06:24:11,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 06:24:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 06:24:11,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 06:24:11,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 06:24:11,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 06:24:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-25 06:24:11,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 06:24:11,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:24:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 06:24:11,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:11,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:11,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-25 06:24:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:24:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 06:24:11,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:11,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-25 06:24:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:11,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:24:11,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 06:24:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:24:11,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158
[2020-09-25 06:24:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:11,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 06:24:11,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 06:24:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:24:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 06:24:11,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168
[2020-09-25 06:24:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:24:11,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:24:11,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:24:11,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 06:24:11,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:24:11,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 06:24:11,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:24:11,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:24:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:24:11,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 06:24:11,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:24:11,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:24:11,975 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 06:24:11,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546813992]
[2020-09-25 06:24:11,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:24:11,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 06:24:11,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630890684]
[2020-09-25 06:24:11,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 06:24:11,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:24:11,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 06:24:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-25 06:24:11,978 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 11 states.
[2020-09-25 06:24:12,569 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:24:15,128 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:24:15,530 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:24:15,852 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:24:16,173 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 06:24:16,474 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 06:24:16,987 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 06:24:17,304 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:24:17,630 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 06:24:18,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:24:18,200 INFO L93 Difference]: Finished difference Result 697 states and 868 transitions.
[2020-09-25 06:24:18,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2020-09-25 06:24:18,201 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 180
[2020-09-25 06:24:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:24:18,207 INFO L225 Difference]: With dead ends: 697
[2020-09-25 06:24:18,207 INFO L226 Difference]: Without dead ends: 558
[2020-09-25 06:24:18,209 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 06:24:18,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states.
[2020-09-25 06:24:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 385.
[2020-09-25 06:24:18,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states.
[2020-09-25 06:24:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 428 transitions.
[2020-09-25 06:24:18,297 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 428 transitions. Word has length 180
[2020-09-25 06:24:18,298 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:24:18,298 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 428 transitions.
[2020-09-25 06:24:18,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 06:24:18,298 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 428 transitions.
[2020-09-25 06:24:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186
[2020-09-25 06:24:18,301 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 06:24:18,302 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 06:24:18,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 06:24:18,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:24:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:24:18,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1994642045, now seen corresponding path program 1 times
[2020-09-25 06:24:18,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:24:18,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701592408]
[2020-09-25 06:24:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:24:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 06:24:18,364 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 06:24:18,365 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 06:24:18,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 06:24:18,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:24:18 BoogieIcfgContainer
[2020-09-25 06:24:18,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 06:24:18,401 INFO L168 Benchmark]: Toolchain (without parser) took 32079.67 ms. Allocated memory was 139.5 MB in the beginning and 577.2 MB in the end (delta: 437.8 MB). Free memory was 100.6 MB in the beginning and 198.2 MB in the end (delta: -97.5 MB). Peak memory consumption was 340.2 MB. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,402 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.17 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.0 MB in the beginning and 173.6 MB in the end (delta: -73.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,404 INFO L168 Benchmark]: Boogie Preprocessor took 131.90 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,404 INFO L168 Benchmark]: RCFGBuilder took 1410.57 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 179.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,405 INFO L168 Benchmark]: TraceAbstraction took 29763.96 ms. Allocated memory was 237.0 MB in the beginning and 577.2 MB in the end (delta: 340.3 MB). Free memory was 178.4 MB in the beginning and 198.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 320.5 MB. Max. memory is 7.1 GB.
[2020-09-25 06:24:18,409 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 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 763.17 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.0 MB in the beginning and 173.6 MB in the end (delta: -73.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 131.90 ms. Allocated memory is still 204.5 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1410.57 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 179.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 29763.96 ms. Allocated memory was 237.0 MB in the beginning and 577.2 MB in the end (delta: 340.3 MB). Free memory was 178.4 MB in the beginning and 198.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 320.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 883]: 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;
[L136] int cleanupTimeShifts = 4;
[L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L675] int pumpRunning = 0;
[L676] int systemActive = 1;
[L215] int retValue_acc ;
[L216] int tmp ;
[L220] FCALL select_helpers()
[L221] FCALL select_features()
[L222] CALL, EXPR valid_product()
[L914] int retValue_acc ;
[L917] retValue_acc = 1
[L918] return (retValue_acc);
[L222] RET, EXPR valid_product()
[L222] tmp = valid_product()
[L224] COND TRUE \read(tmp)
[L226] FCALL setup()
[L227] CALL runTest()
[L206] CALL test()
[L606] int splverifierCounter ;
[L607] int tmp ;
[L608] int tmp___0 ;
[L609] int tmp___1 ;
[L610] int tmp___2 ;
[L613] splverifierCounter = 0
[L615] COND TRUE 1
[L617] COND TRUE splverifierCounter < 4
[L623] tmp = __VERIFIER_nondet_int()
[L625] COND TRUE \read(tmp)
[L627] CALL waterRise()
[L65] COND TRUE waterLevel < 2
[L66] waterLevel = waterLevel + 1
[L627] RET waterRise()
[L633] tmp___0 = __VERIFIER_nondet_int()
[L635] COND FALSE !(\read(tmp___0))
[L643] tmp___2 = __VERIFIER_nondet_int()
[L645] COND TRUE \read(tmp___2)
[L647] CALL startSystem()
[L874] systemActive = 1
[L647] RET startSystem()
[L660] CALL timeShift()
[L683] COND FALSE !(\read(pumpRunning))
[L690] COND TRUE \read(systemActive)
[L692] CALL processEnvironment()
[L738] int tmp ;
[L741] COND FALSE !(\read(pumpRunning))
[L756] CALL processEnvironment__wrappee__methaneQuery()
[L712] int tmp ;
[L715] COND FALSE !(\read(pumpRunning))
[L730] FCALL processEnvironment__wrappee__base()
[L756] RET processEnvironment__wrappee__methaneQuery()
[L692] RET processEnvironment()
[L698] CALL __utac_acc__Specification3_spec__1()
[L924] int tmp ;
[L925] int tmp___0 ;
[L926] int tmp___1 ;
[L930] CALL, EXPR isMethaneLevelCritical()
[L86] int retValue_acc ;
[L89] retValue_acc = methaneLevelCritical
[L90] return (retValue_acc);
[L930] RET, EXPR isMethaneLevelCritical()
[L930] tmp = isMethaneLevelCritical()
[L932] COND FALSE !(\read(tmp))
[L936] CALL, EXPR getWaterLevel()
[L118] int retValue_acc ;
[L121] retValue_acc = waterLevel
[L122] return (retValue_acc);
[L936] RET, EXPR getWaterLevel()
[L936] tmp___0 = getWaterLevel()
[L938] COND TRUE tmp___0 == 2
[L940] CALL, EXPR isPumpRunning()
[L807] int retValue_acc ;
[L810] retValue_acc = pumpRunning
[L811] return (retValue_acc);
[L940] RET, EXPR isPumpRunning()
[L940] tmp___1 = isPumpRunning()
[L942] COND FALSE !(\read(tmp___1))
[L946] CALL __automaton_fail()
[L883] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 953 SDtfs, 1893 SDslu, 887 SDs, 0 SdLazy, 2231 SolverSat, 718 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.5s 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 307 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.4s 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...