/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product18.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:48:57,698 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:48:57,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:48:57,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:48:57,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:48:57,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:48:57,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:48:57,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:48:57,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:48:57,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:48:57,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:48:57,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:48:57,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:48:57,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:48:57,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:48:57,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:48:57,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:48:57,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:48:57,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:48:57,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:48:57,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:48:57,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:48:57,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:48:57,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:48:57,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:48:57,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:48:57,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:48:57,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:48:57,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:48:57,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:48:57,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:48:57,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:48:57,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:48:57,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:48:57,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:48:57,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:48:57,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:48:57,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:48:57,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:48:57,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:48:57,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:48:57,790 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 09:48:57,841 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 09:48:57,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:48:57,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:48:57,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 09:48:57,848 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 09:48:57,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:48:57,848 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:48:57,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:48:57,850 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 09:48:57,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 09:48:57,850 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 09:48:57,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:48:57,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:48:57,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 09:48:57,851 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 09:48:57,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 09:48:57,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:48:57,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:48:57,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:48:57,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:48:57,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 09:48:57,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:48:57,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:48:57,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 09:48:57,853 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 09:48:58,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:48:58,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:48:58,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:48:58,378 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 09:48:58,379 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 09:48:58,380 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 09:48:58,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ba70a99/21c88429fe274b9aba17c398b4cfda02/FLAG031da93e6
[2020-09-25 09:48:59,134 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 09:48:59,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c
[2020-09-25 09:48:59,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ba70a99/21c88429fe274b9aba17c398b4cfda02/FLAG031da93e6
[2020-09-25 09:48:59,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ba70a99/21c88429fe274b9aba17c398b4cfda02
[2020-09-25 09:48:59,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:48:59,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:48:59,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:48:59,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:48:59,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:48:59,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:59" (1/1) ...
[2020-09-25 09:48:59,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6eda31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:59, skipping insertion in model container
[2020-09-25 09:48:59,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:59" (1/1) ...
[2020-09-25 09:48:59,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 09:48:59,513 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:48:59,909 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:48:59,925 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 09:49:00,120 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:49:00,165 INFO L208 MainTranslator]: Completed translation
[2020-09-25 09:49:00,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00 WrapperNode
[2020-09-25 09:49:00,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:49:00,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:49:00,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:49:00,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:49:00,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (1/1) ...
[2020-09-25 09:49:00,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:49:00,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:49:00,304 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:49:00,304 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:49:00,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (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 09:49:00,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:49:00,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:49:00,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 09:49:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 09:49:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 09:49:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 09:49:00,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:49:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 09:49:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 09:49:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 09:49:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 09:49:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 09:49:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 09:49:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 09:49:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 09:49:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 09:49:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 09:49:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 09:49:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 09:49:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 09:49:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 09:49:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 09:49:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:49:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:49:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 09:49:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 09:49:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 09:49:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 09:49:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 09:49:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 09:49:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 09:49:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 09:49:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 09:49:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 09:49:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:49:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 09:49:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:49:01,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:49:01,776 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 09:49:01,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:01 BoogieIcfgContainer
[2020-09-25 09:49:01,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:49:01,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:49:01,785 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:49:01,789 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:49:01,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:59" (1/3) ...
[2020-09-25 09:49:01,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ae14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:01, skipping insertion in model container
[2020-09-25 09:49:01,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:00" (2/3) ...
[2020-09-25 09:49:01,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413ae14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:01, skipping insertion in model container
[2020-09-25 09:49:01,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:01" (3/3) ...
[2020-09-25 09:49:01,793 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c
[2020-09-25 09:49:01,805 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:49:01,817 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:49:01,838 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:49:01,867 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:49:01,867 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 09:49:01,868 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:49:01,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:49:01,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:49:01,868 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 09:49:01,868 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:49:01,868 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:49:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states.
[2020-09-25 09:49:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 09:49:01,915 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:49:01,916 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 09:49:01,917 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:01,924 INFO L82 PathProgramCache]: Analyzing trace with hash -255597227, now seen corresponding path program 1 times
[2020-09-25 09:49:01,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:01,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658949810]
[2020-09-25 09:49:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:02,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:02,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:07,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:07,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 09:49:07,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 09:49:07,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027
[2020-09-25 09:49:07,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:07,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:07,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 09:49:07,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-25 09:49:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-25 09:49:07,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6
[2020-09-25 09:49:07,814 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:07,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:08,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284
[2020-09-25 09:49:08,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-25 09:49:08,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 09:49:08,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:08,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:08,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:08,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:08,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:08,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:08,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 09:49:08,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:08,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:08,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 09:49:08,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 09:49:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:08,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:08,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:08,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 09:49:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:08,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 09:49:08,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 09:49:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:08,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 09:49:08,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 09:49:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:08,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:08,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:08,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:08,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:49:08,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:08,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:08,381 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 09:49:08,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658949810]
[2020-09-25 09:49:08,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:08,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 09:49:08,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134513997]
[2020-09-25 09:49:08,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 09:49:08,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:08,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 09:49:08,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 09:49:08,414 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 8 states.
[2020-09-25 09:49:09,073 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:10,499 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:10,869 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:11,299 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:11,787 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 09:49:12,101 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:12,765 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:13,085 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 09:49:14,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:14,163 INFO L93 Difference]: Finished difference Result 586 states and 723 transitions.
[2020-09-25 09:49:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 09:49:14,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 09:49:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:14,202 INFO L225 Difference]: With dead ends: 586
[2020-09-25 09:49:14,202 INFO L226 Difference]: Without dead ends: 390
[2020-09-25 09:49:14,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2020-09-25 09:49:14,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2020-09-25 09:49:14,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 346.
[2020-09-25 09:49:14,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states.
[2020-09-25 09:49:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 380 transitions.
[2020-09-25 09:49:14,380 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 380 transitions. Word has length 153
[2020-09-25 09:49:14,381 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:14,381 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 380 transitions.
[2020-09-25 09:49:14,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 09:49:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 380 transitions.
[2020-09-25 09:49:14,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2020-09-25 09:49:14,387 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:49:14,388 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 09:49:14,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:49:14,389 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:14,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:14,389 INFO L82 PathProgramCache]: Analyzing trace with hash 137039825, now seen corresponding path program 1 times
[2020-09-25 09:49:14,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:14,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89297217]
[2020-09-25 09:49:14,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:14,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:14,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207
[2020-09-25 09:49:14,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378
[2020-09-25 09:49:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:14,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153
[2020-09-25 09:49:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 09:49:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,151 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 09:49:15,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:49:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 09:49:15,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128
[2020-09-25 09:49:15,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 09:49:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:15,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 09:49:15,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 09:49:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:15,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:15,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 09:49:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:15,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 09:49:15,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 09:49:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:49:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:15,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-25 09:49:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 09:49:15,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:15,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-25 09:49:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 09:49:15,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 09:49:15,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:49:15,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:49:15,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 09:49:15,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-25 09:49:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:15,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:15,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:15,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150
[2020-09-25 09:49:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:15,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:15,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:15,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160
[2020-09-25 09:49:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:49:15,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:49:15,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:49:15,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 09:49:15,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:49:15,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:49:15,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 09:49:15,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 09:49:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:49:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 09:49:15,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:49:15,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:49:15,472 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 09:49:15,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89297217]
[2020-09-25 09:49:15,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:49:15,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 09:49:15,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358656374]
[2020-09-25 09:49:15,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 09:49:15,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:49:15,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 09:49:15,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 09:49:15,478 INFO L87 Difference]: Start difference. First operand 346 states and 380 transitions. Second operand 6 states.
[2020-09-25 09:49:16,023 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 09:49:17,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:49:17,404 INFO L93 Difference]: Finished difference Result 725 states and 881 transitions.
[2020-09-25 09:49:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 09:49:17,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172
[2020-09-25 09:49:17,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:49:17,413 INFO L225 Difference]: With dead ends: 725
[2020-09-25 09:49:17,413 INFO L226 Difference]: Without dead ends: 489
[2020-09-25 09:49:17,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2020-09-25 09:49:17,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states.
[2020-09-25 09:49:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 351.
[2020-09-25 09:49:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states.
[2020-09-25 09:49:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 385 transitions.
[2020-09-25 09:49:17,492 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 385 transitions. Word has length 172
[2020-09-25 09:49:17,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:49:17,493 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 385 transitions.
[2020-09-25 09:49:17,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 09:49:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 385 transitions.
[2020-09-25 09:49:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 09:49:17,498 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:49:17,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:49:17,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:49:17,499 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:49:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:49:17,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1778118102, now seen corresponding path program 1 times
[2020-09-25 09:49:17,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:49:17,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912221688]
[2020-09-25 09:49:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:49:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 09:49:17,622 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 09:49:17,622 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 09:49:17,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:49:17,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:17 BoogieIcfgContainer
[2020-09-25 09:49:17,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:49:17,660 INFO L168 Benchmark]: Toolchain (without parser) took 18260.39 ms. Allocated memory was 142.1 MB in the beginning and 465.6 MB in the end (delta: 323.5 MB). Free memory was 104.9 MB in the beginning and 416.7 MB in the end (delta: -311.8 MB). Peak memory consumption was 338.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,661 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.28 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 104.2 MB in the beginning and 174.2 MB in the end (delta: -70.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,663 INFO L168 Benchmark]: Boogie Preprocessor took 137.00 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,664 INFO L168 Benchmark]: RCFGBuilder took 1479.98 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 170.2 MB in the beginning and 173.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,665 INFO L168 Benchmark]: TraceAbstraction took 15872.98 ms. Allocated memory was 233.8 MB in the beginning and 465.6 MB in the end (delta: 231.7 MB). Free memory was 173.2 MB in the beginning and 416.7 MB in the end (delta: -243.5 MB). Peak memory consumption was 315.0 MB. Max. memory is 7.1 GB.
[2020-09-25 09:49:17,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 755.28 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 104.2 MB in the beginning and 174.2 MB in the end (delta: -70.0 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 137.00 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1479.98 ms. Allocated memory was 203.9 MB in the beginning and 233.8 MB in the end (delta: 29.9 MB). Free memory was 170.2 MB in the beginning and 173.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 15872.98 ms. Allocated memory was 233.8 MB in the beginning and 465.6 MB in the end (delta: 231.7 MB). Free memory was 173.2 MB in the beginning and 416.7 MB in the end (delta: -243.5 MB). Peak memory consumption was 315.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L40] int cleanupTimeShifts = 4;
[L149] int waterLevel = 1;
[L150] int methaneLevelCritical = 0;
[L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L608] int pumpRunning = 0;
[L609] int systemActive = 1;
[L121] int retValue_acc ;
[L122] int tmp ;
[L126] FCALL select_helpers()
[L127] FCALL select_features()
[L128] CALL, EXPR valid_product()
[L862] int retValue_acc ;
[L865] retValue_acc = 1
[L866] return (retValue_acc);
[L128] RET, EXPR valid_product()
[L128] tmp = valid_product()
[L130] COND TRUE \read(tmp)
[L132] FCALL setup()
[L133] CALL runTest()
[L112] CALL test()
[L770] int splverifierCounter ;
[L771] int tmp ;
[L772] int tmp___0 ;
[L773] int tmp___1 ;
[L774] int tmp___2 ;
[L777] splverifierCounter = 0
[L779] COND TRUE 1
[L781] COND TRUE splverifierCounter < 4
[L787] tmp = __VERIFIER_nondet_int()
[L789] COND TRUE \read(tmp)
[L791] CALL waterRise()
[L167] COND TRUE waterLevel < 2
[L168] waterLevel = waterLevel + 1
[L791] RET waterRise()
[L797] tmp___0 = __VERIFIER_nondet_int()
[L799] COND FALSE !(\read(tmp___0))
[L807] tmp___2 = __VERIFIER_nondet_int()
[L809] COND TRUE \read(tmp___2)
[L811] CALL startSystem()
[L764] systemActive = 1
[L811] RET startSystem()
[L824] CALL timeShift()
[L616] COND FALSE !(\read(pumpRunning))
[L623] COND TRUE \read(systemActive)
[L625] CALL processEnvironment()
[L645] int tmp ;
[L648] COND FALSE !(\read(pumpRunning))
[L663] FCALL processEnvironment__wrappee__base()
[L625] RET processEnvironment()
[L631] CALL __utac_acc__Specification3_spec__1()
[L873] int tmp ;
[L874] int tmp___0 ;
[L875] int tmp___1 ;
[L879] CALL, EXPR isMethaneLevelCritical()
[L188] int retValue_acc ;
[L191] retValue_acc = methaneLevelCritical
[L192] return (retValue_acc);
[L879] RET, EXPR isMethaneLevelCritical()
[L879] tmp = isMethaneLevelCritical()
[L881] COND FALSE !(\read(tmp))
[L885] CALL, EXPR getWaterLevel()
[L220] int retValue_acc ;
[L223] retValue_acc = waterLevel
[L224] return (retValue_acc);
[L885] RET, EXPR getWaterLevel()
[L885] tmp___0 = getWaterLevel()
[L887] COND TRUE tmp___0 == 2
[L889] CALL, EXPR isPumpRunning()
[L697] int retValue_acc ;
[L700] retValue_acc = pumpRunning
[L701] return (retValue_acc);
[L889] RET, EXPR isPumpRunning()
[L889] tmp___1 = isPumpRunning()
[L891] COND FALSE !(\read(tmp___1))
[L895] CALL __automaton_fail()
[L910] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 38 procedures, 613 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 465 SDtfs, 941 SDslu, 698 SDs, 0 SdLazy, 1470 SolverSat, 317 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=351occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 182 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 505 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...