/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=1.0 --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_product32.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:41:45,963 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:41:45,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:41:46,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:41:46,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:41:46,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:41:46,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:41:46,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:41:46,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:41:46,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:41:46,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:41:46,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:41:46,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:41:46,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:41:46,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:41:46,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:41:46,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:41:46,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:41:46,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:41:46,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:41:46,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:41:46,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:41:46,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:41:46,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:41:46,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:41:46,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:41:46,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:41:46,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:41:46,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:41:46,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:41:46,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:41:46,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:41:46,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:41:46,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:41:46,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:41:46,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:41:46,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:41:46,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:41:46,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:41:46,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:41:46,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:41:46,086 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 08:41:46,132 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 08:41:46,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:41:46,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:41:46,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 08:41:46,135 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 08:41:46,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:41:46,136 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 08:41:46,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 08:41:46,136 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 08:41:46,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 08:41:46,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:41:46,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:41:46,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:41:46,138 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 08:41:46,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 08:41:46,139 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 08:41:46,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:41:46,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:41:46,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 08:41:46,140 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 08:41:46,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 08:41:46,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:41:46,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:41:46,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:41:46,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:41:46,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 08:41:46,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:41:46,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:41:46,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 08:41:46,142 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true;
[2020-09-25 08:41:46,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:41:46,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:41:46,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:41:46,619 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 08:41:46,620 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 08:41:46,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c
[2020-09-25 08:41:46,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03e42f29c/facd25a8f41546c9a889a928f3321443/FLAG051432d89
[2020-09-25 08:41:47,285 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 08:41:47,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c
[2020-09-25 08:41:47,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03e42f29c/facd25a8f41546c9a889a928f3321443/FLAG051432d89
[2020-09-25 08:41:47,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03e42f29c/facd25a8f41546c9a889a928f3321443
[2020-09-25 08:41:47,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:41:47,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:41:47,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:41:47,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:41:47,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:41:47,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:47" (1/1) ...
[2020-09-25 08:41:47,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:47, skipping insertion in model container
[2020-09-25 08:41:47,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:47" (1/1) ...
[2020-09-25 08:41:47,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 08:41:47,653 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:41:48,196 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:41:48,213 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 08:41:48,303 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:41:48,363 INFO L208 MainTranslator]: Completed translation
[2020-09-25 08:41:48,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48 WrapperNode
[2020-09-25 08:41:48,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:41:48,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:41:48,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:41:48,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:41:48,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (1/1) ...
[2020-09-25 08:41:48,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:41:48,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:41:48,485 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:41:48,485 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:41:48,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (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 08:41:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:41:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:41:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:41:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 08:41:48,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 08:41:48,573 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 08:41:48,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 08:41:48,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 08:41:48,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 08:41:48,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:41:48,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 08:41:48,575 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 08:41:48,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 08:41:48,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 08:41:48,575 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 08:41:48,576 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 08:41:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 08:41:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 08:41:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:41:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 08:41:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 08:41:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 08:41:48,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 08:41:48,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 08:41:48,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 08:41:48,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:41:48,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:41:48,579 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 08:41:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 08:41:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 08:41:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 08:41:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 08:41:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 08:41:48,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 08:41:48,582 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 08:41:48,583 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 08:41:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 08:41:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 08:41:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:41:48,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 08:41:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 08:41:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:41:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 08:41:48,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:41:49,805 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:41:49,806 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 08:41:49,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:49 BoogieIcfgContainer
[2020-09-25 08:41:49,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:41:49,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:41:49,815 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:41:49,819 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:41:49,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:41:47" (1/3) ...
[2020-09-25 08:41:49,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d31a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:49, skipping insertion in model container
[2020-09-25 08:41:49,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:48" (2/3) ...
[2020-09-25 08:41:49,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d31a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:49, skipping insertion in model container
[2020-09-25 08:41:49,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:49" (3/3) ...
[2020-09-25 08:41:49,823 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c
[2020-09-25 08:41:49,835 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:41:49,846 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:41:49,871 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:41:49,905 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:41:49,906 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 08:41:49,906 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:41:49,906 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:41:49,906 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:41:49,906 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 08:41:49,907 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:41:49,907 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:41:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states.
[2020-09-25 08:41:49,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 08:41:49,958 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:41:49,959 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 08:41:49,960 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:41:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:41:49,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1415492803, now seen corresponding path program 1 times
[2020-09-25 08:41:49,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:41:49,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202440692]
[2020-09-25 08:41:49,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:41:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:50,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:50,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:52,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:55,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 08:41:55,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:41:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012
[2020-09-25 08:41:55,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:55,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-25 08:41:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 08:41:55,966 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 08:41:55,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:41:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 08:41:56,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142
[2020-09-25 08:41:56,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:41:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 08:41:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:41:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:41:56,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 08:41:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:41:56,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:41:56,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:41:56,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 08:41:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:41:56,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 08:41:56,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:41:56,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 08:41:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:41:56,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:41:56,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:41:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 08:41:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:41:56,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:41:56,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:41:56,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 08:41:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:41:56,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:41:56,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:41:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 08:41:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:56,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:56,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:41:56,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:41:56,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:41:56,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:41:56,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:41:56,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:41:56,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:41:56,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:41:56,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:41:56,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:41:56,349 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 08:41:56,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202440692]
[2020-09-25 08:41:56,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:41:56,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 08:41:56,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920268542]
[2020-09-25 08:41:56,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 08:41:56,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:41:56,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 08:41:56,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 08:41:56,391 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 3 states.
[2020-09-25 08:41:58,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:41:58,365 INFO L93 Difference]: Finished difference Result 500 states and 599 transitions.
[2020-09-25 08:41:58,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 08:41:58,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-25 08:41:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:41:58,390 INFO L225 Difference]: With dead ends: 500
[2020-09-25 08:41:58,390 INFO L226 Difference]: Without dead ends: 309
[2020-09-25 08:41:58,397 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 08:41:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states.
[2020-09-25 08:41:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 265.
[2020-09-25 08:41:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states.
[2020-09-25 08:41:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 290 transitions.
[2020-09-25 08:41:58,601 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 290 transitions. Word has length 153
[2020-09-25 08:41:58,605 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:41:58,605 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 290 transitions.
[2020-09-25 08:41:58,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 08:41:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 290 transitions.
[2020-09-25 08:41:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-25 08:41:58,618 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:41:58,618 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 08:41:58,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:41:58,619 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:41:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:41:58,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1710545638, now seen corresponding path program 1 times
[2020-09-25 08:41:58,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:41:58,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580969422]
[2020-09-25 08:41:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:41:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:41:58,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:41:58,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:03,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:03,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-25 08:42:03,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:42:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999
[2020-09-25 08:42:03,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:03,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:03,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-25 08:42:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 08:42:03,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:03,984 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 08:42:03,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:42:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 08:42:04,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-09-25 08:42:04,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:04,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 08:42:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:04,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:42:04,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 08:42:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:04,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:42:04,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 08:42:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 08:42:04,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 08:42:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:04,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:42:04,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-25 08:42:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:04,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:42:04,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:04,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:42:04,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-25 08:42:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:04,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:04,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:04,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-25 08:42:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:04,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:04,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:04,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:04,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:04,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:04,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:04,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:04,270 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 08:42:04,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580969422]
[2020-09-25 08:42:04,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:42:04,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 08:42:04,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065760845]
[2020-09-25 08:42:04,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 08:42:04,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:42:04,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 08:42:04,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 08:42:04,276 INFO L87 Difference]: Start difference. First operand 265 states and 290 transitions. Second operand 4 states.
[2020-09-25 08:42:04,893 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 08:42:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:42:06,059 INFO L93 Difference]: Finished difference Result 407 states and 462 transitions.
[2020-09-25 08:42:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:42:06,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-25 08:42:06,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:42:06,067 INFO L225 Difference]: With dead ends: 407
[2020-09-25 08:42:06,071 INFO L226 Difference]: Without dead ends: 292
[2020-09-25 08:42:06,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:42:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states.
[2020-09-25 08:42:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255.
[2020-09-25 08:42:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states.
[2020-09-25 08:42:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions.
[2020-09-25 08:42:06,129 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 154
[2020-09-25 08:42:06,130 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:42:06,130 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions.
[2020-09-25 08:42:06,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 08:42:06,130 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions.
[2020-09-25 08:42:06,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168
[2020-09-25 08:42:06,132 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:42:06,133 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 08:42:06,133 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:42:06,133 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:42:06,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:42:06,133 INFO L82 PathProgramCache]: Analyzing trace with hash -2101830129, now seen corresponding path program 1 times
[2020-09-25 08:42:06,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:42:06,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119669810]
[2020-09-25 08:42:06,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:42:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:06,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:06,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200
[2020-09-25 08:42:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:42:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2877
[2020-09-25 08:42:09,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146
[2020-09-25 08:42:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 08:42:09,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,341 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 08:42:09,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:42:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 08:42:09,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97
[2020-09-25 08:42:09,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 08:42:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:09,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:42:09,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 08:42:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:09,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-25 08:42:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 08:42:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:09,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:42:09,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:42:09,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 08:42:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:09,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:09,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-25 08:42:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:42:09,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:42:09,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:09,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:09,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 08:42:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-25 08:42:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:09,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:09,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-25 08:42:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:09,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:09,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:09,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155
[2020-09-25 08:42:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:09,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:09,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:09,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:09,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:09,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 08:42:09,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:09,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:09,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:09,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:09,591 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 08:42:09,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119669810]
[2020-09-25 08:42:09,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:42:09,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:42:09,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859061487]
[2020-09-25 08:42:09,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:42:09,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:42:09,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:42:09,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:42:09,596 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 5 states.
[2020-09-25 08:42:10,140 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 08:42:12,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:42:12,258 INFO L93 Difference]: Finished difference Result 615 states and 718 transitions.
[2020-09-25 08:42:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 08:42:12,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167
[2020-09-25 08:42:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:42:12,265 INFO L225 Difference]: With dead ends: 615
[2020-09-25 08:42:12,266 INFO L226 Difference]: Without dead ends: 470
[2020-09-25 08:42:12,267 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 08:42:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states.
[2020-09-25 08:42:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 390.
[2020-09-25 08:42:12,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states.
[2020-09-25 08:42:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 435 transitions.
[2020-09-25 08:42:12,329 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 435 transitions. Word has length 167
[2020-09-25 08:42:12,329 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:42:12,329 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 435 transitions.
[2020-09-25 08:42:12,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:42:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 435 transitions.
[2020-09-25 08:42:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 08:42:12,332 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:42:12,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:42:12,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:42:12,333 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:42:12,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:42:12,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1375229366, now seen corresponding path program 1 times
[2020-09-25 08:42:12,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:42:12,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826188558]
[2020-09-25 08:42:12,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:42:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:12,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1768
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-25 08:42:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 08:42:14,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108
[2020-09-25 08:42:14,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:42:14,557 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 08:42:14,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:42:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 08:42:14,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235
[2020-09-25 08:42:14,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:14,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 08:42:14,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:42:14,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 08:42:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:14,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:42:14,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:14,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:42:14,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:14,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 08:42:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:14,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:14,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:14,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:42:14,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:42:14,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 08:42:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:14,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:42:14,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:14,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:14,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:42:14,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:14,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 08:42:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:14,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:42:14,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:14,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:14,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 08:42:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:14,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2020-09-25 08:42:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:14,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:15,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 08:42:15,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:42:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:15,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:42:15,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:15,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 08:42:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:15,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:15,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:42:15,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:15,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 08:42:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:15,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:42:15,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:42:15,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 08:42:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:15,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:15,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:15,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:15,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:42:15,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:15,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 08:42:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:42:15,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 08:42:15,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:42:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 08:42:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:42:15,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:42:15,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:42:15,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 08:42:15,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:42:15,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:42:15,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:42:15,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 08:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 08:42:15,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:42:15,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 08:42:15,099 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 08:42:15,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826188558]
[2020-09-25 08:42:15,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:42:15,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 08:42:15,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929031109]
[2020-09-25 08:42:15,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 08:42:15,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:42:15,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 08:42:15,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90
[2020-09-25 08:42:15,102 INFO L87 Difference]: Start difference. First operand 390 states and 435 transitions. Second operand 10 states.
[2020-09-25 08:42:15,623 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 08:42:17,773 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 08:42:18,097 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:42:18,452 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:42:18,820 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 08:42:19,137 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-25 08:42:19,466 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 08:42:19,775 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 08:42:20,312 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 08:42:21,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:42:21,280 INFO L93 Difference]: Finished difference Result 1056 states and 1281 transitions.
[2020-09-25 08:42:21,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2020-09-25 08:42:21,281 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172
[2020-09-25 08:42:21,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:42:21,287 INFO L225 Difference]: With dead ends: 1056
[2020-09-25 08:42:21,287 INFO L226 Difference]: Without dead ends: 776
[2020-09-25 08:42:21,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380
[2020-09-25 08:42:21,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states.
[2020-09-25 08:42:21,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 667.
[2020-09-25 08:42:21,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states.
[2020-09-25 08:42:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 767 transitions.
[2020-09-25 08:42:21,419 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 767 transitions. Word has length 172
[2020-09-25 08:42:21,420 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:42:21,420 INFO L479 AbstractCegarLoop]: Abstraction has 667 states and 767 transitions.
[2020-09-25 08:42:21,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 08:42:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 767 transitions.
[2020-09-25 08:42:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178
[2020-09-25 08:42:21,425 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:42:21,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:42:21,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:42:21,426 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:42:21,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:42:21,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1825655940, now seen corresponding path program 1 times
[2020-09-25 08:42:21,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:42:21,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649160871]
[2020-09-25 08:42:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:42:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 08:42:21,496 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 08:42:21,496 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 08:42:21,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 08:42:21,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:42:21 BoogieIcfgContainer
[2020-09-25 08:42:21,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 08:42:21,532 INFO L168 Benchmark]: Toolchain (without parser) took 33965.38 ms. Allocated memory was 146.3 MB in the beginning and 614.5 MB in the end (delta: 468.2 MB). Free memory was 100.2 MB in the beginning and 314.4 MB in the end (delta: -214.2 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB.
[2020-09-25 08:42:21,533 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 146.3 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 08:42:21,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.80 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 170.3 MB in the end (delta: -70.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
[2020-09-25 08:42:21,535 INFO L168 Benchmark]: Boogie Preprocessor took 118.47 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
[2020-09-25 08:42:21,536 INFO L168 Benchmark]: RCFGBuilder took 1329.12 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 165.6 MB in the beginning and 174.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB.
[2020-09-25 08:42:21,537 INFO L168 Benchmark]: TraceAbstraction took 31715.28 ms. Allocated memory was 235.9 MB in the beginning and 614.5 MB in the end (delta: 378.5 MB). Free memory was 173.3 MB in the beginning and 314.4 MB in the end (delta: -141.1 MB). Peak memory consumption was 237.4 MB. Max. memory is 7.1 GB.
[2020-09-25 08:42:21,541 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25 ms. Allocated memory is still 146.3 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 792.80 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 170.3 MB in the end (delta: -70.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 118.47 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 165.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1329.12 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 165.6 MB in the beginning and 174.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 82.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 31715.28 ms. Allocated memory was 235.9 MB in the beginning and 614.5 MB in the end (delta: 378.5 MB). Free memory was 173.3 MB in the beginning and 314.4 MB in the end (delta: -141.1 MB). Peak memory consumption was 237.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L489] int pumpRunning = 0;
[L490] int systemActive = 1;
[L717] int cleanupTimeShifts = 4;
[L886] int waterLevel = 1;
[L887] int methaneLevelCritical = 0;
[L793] int retValue_acc ;
[L794] int tmp ;
[L798] FCALL select_helpers()
[L799] FCALL select_features()
[L800] CALL, EXPR valid_product()
[L877] int retValue_acc ;
[L880] retValue_acc = 1
[L881] return (retValue_acc);
[L800] RET, EXPR valid_product()
[L800] tmp = valid_product()
[L802] COND TRUE \read(tmp)
[L804] FCALL setup()
[L805] CALL runTest()
[L784] CALL test()
[L413] int splverifierCounter ;
[L414] int tmp ;
[L415] int tmp___0 ;
[L416] int tmp___1 ;
[L417] int tmp___2 ;
[L420] splverifierCounter = 0
[L422] COND TRUE 1
[L424] COND TRUE splverifierCounter < 4
[L430] tmp = __VERIFIER_nondet_int()
[L432] COND TRUE \read(tmp)
[L434] CALL waterRise()
[L904] COND TRUE waterLevel < 2
[L905] waterLevel = waterLevel + 1
[L434] RET waterRise()
[L440] tmp___0 = __VERIFIER_nondet_int()
[L442] COND FALSE !(\read(tmp___0))
[L450] tmp___2 = __VERIFIER_nondet_int()
[L452] COND FALSE !(\read(tmp___2))
[L458] tmp___1 = __VERIFIER_nondet_int()
[L460] COND TRUE \read(tmp___1)
[L462] CALL stopSystem()
[L688] COND FALSE !(\read(pumpRunning))
[L695] systemActive = 0
[L462] RET stopSystem()
[L469] CALL timeShift()
[L497] COND FALSE !(\read(pumpRunning))
[L504] COND FALSE !(\read(systemActive))
[L512] CALL __utac_acc__Specification3_spec__1()
[L818] int tmp ;
[L819] int tmp___0 ;
[L820] int tmp___1 ;
[L824] CALL, EXPR isMethaneLevelCritical()
[L925] int retValue_acc ;
[L928] retValue_acc = methaneLevelCritical
[L929] return (retValue_acc);
[L824] RET, EXPR isMethaneLevelCritical()
[L824] tmp = isMethaneLevelCritical()
[L826] COND FALSE !(\read(tmp))
[L830] CALL, EXPR getWaterLevel()
[L957] int retValue_acc ;
[L960] retValue_acc = waterLevel
[L961] return (retValue_acc);
[L830] RET, EXPR getWaterLevel()
[L830] tmp___0 = getWaterLevel()
[L832] COND TRUE tmp___0 == 2
[L834] CALL, EXPR isPumpRunning()
[L621] int retValue_acc ;
[L624] retValue_acc = pumpRunning
[L625] return (retValue_acc);
[L834] RET, EXPR isPumpRunning()
[L834] tmp___1 = isPumpRunning()
[L836] COND FALSE !(\read(tmp___1))
[L840] CALL __automaton_fail()
[L712] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 41 procedures, 640 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 31.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1026 SDtfs, 1339 SDslu, 1010 SDs, 0 SdLazy, 2386 SolverSat, 454 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=667occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 270 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 254693 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...