/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=SHALLOWEST --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_product09.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 23:34:58,582 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 23:34:58,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 23:34:58,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 23:34:58,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 23:34:58,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 23:34:58,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 23:34:58,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 23:34:58,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 23:34:58,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 23:34:58,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 23:34:58,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 23:34:58,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 23:34:58,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 23:34:58,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 23:34:58,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 23:34:58,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 23:34:58,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 23:34:58,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 23:34:58,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 23:34:58,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 23:34:58,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 23:34:58,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 23:34:58,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 23:34:58,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 23:34:58,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 23:34:58,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 23:34:58,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 23:34:58,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 23:34:58,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 23:34:58,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 23:34:58,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 23:34:58,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 23:34:58,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 23:34:58,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 23:34:58,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 23:34:58,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 23:34:58,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 23:34:58,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 23:34:58,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 23:34:58,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 23:34:58,663 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
[2020-09-24 23:34:58,688 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 23:34:58,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 23:34:58,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 23:34:58,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 23:34:58,691 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 23:34:58,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 23:34:58,691 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 23:34:58,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 23:34:58,691 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 23:34:58,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 23:34:58,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 23:34:58,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 23:34:58,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 23:34:58,692 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 23:34:58,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 23:34:58,693 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 23:34:58,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 23:34:58,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 23:34:58,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 23:34:58,693 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 23:34:58,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 23:34:58,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 23:34:58,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 23:34:58,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 23:34:58,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 23:34:58,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 23:34:58,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 23:34:58,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 23:34:58,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 23:34:58,695 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true;
[2020-09-24 23:34:59,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 23:34:59,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 23:34:59,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 23:34:59,190 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 23:34:59,191 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 23:34:59,192 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c
[2020-09-24 23:34:59,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ce37e70d/1784a7fd0aac4333a6e693c2871d0ac4/FLAGbe35846fa
[2020-09-24 23:34:59,837 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 23:34:59,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c
[2020-09-24 23:34:59,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ce37e70d/1784a7fd0aac4333a6e693c2871d0ac4/FLAGbe35846fa
[2020-09-24 23:35:00,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ce37e70d/1784a7fd0aac4333a6e693c2871d0ac4
[2020-09-24 23:35:00,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 23:35:00,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 23:35:00,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:00,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 23:35:00,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 23:35:00,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:00,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00, skipping insertion in model container
[2020-09-24 23:35:00,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:00,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 23:35:00,243 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 23:35:00,660 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:00,676 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 23:35:00,925 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 23:35:00,961 INFO L208 MainTranslator]: Completed translation
[2020-09-24 23:35:00,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00 WrapperNode
[2020-09-24 23:35:00,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 23:35:00,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 23:35:00,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 23:35:00,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 23:35:00,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:00,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (1/1) ...
[2020-09-24 23:35:01,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 23:35:01,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 23:35:01,059 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 23:35:01,059 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 23:35:01,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (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
[2020-09-24 23:35:01,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 23:35:01,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 23:35:01,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 23:35:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 23:35:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 23:35:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 23:35:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 23:35:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 23:35:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 23:35:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 23:35:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 23:35:01,161 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base
[2020-09-24 23:35:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 23:35:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 23:35:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 23:35:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 23:35:01,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 23:35:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 23:35:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 23:35:01,164 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 23:35:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 23:35:01,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 23:35:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 23:35:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 23:35:01,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 23:35:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 23:35:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 23:35:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 23:35:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 23:35:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-24 23:35:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 23:35:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 23:35:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 23:35:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 23:35:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 23:35:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 23:35:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 23:35:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 23:35:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 23:35:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 23:35:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 23:35:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 23:35:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 23:35:02,455 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 23:35:02,455 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 23:35:02,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:02 BoogieIcfgContainer
[2020-09-24 23:35:02,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 23:35:02,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 23:35:02,464 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 23:35:02,468 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 23:35:02,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:00" (1/3) ...
[2020-09-24 23:35:02,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b464b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:02, skipping insertion in model container
[2020-09-24 23:35:02,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:00" (2/3) ...
[2020-09-24 23:35:02,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b464b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:02, skipping insertion in model container
[2020-09-24 23:35:02,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:02" (3/3) ...
[2020-09-24 23:35:02,472 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c
[2020-09-24 23:35:02,484 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 23:35:02,495 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 23:35:02,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 23:35:02,548 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 23:35:02,548 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 23:35:02,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 23:35:02,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 23:35:02,549 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 23:35:02,549 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 23:35:02,549 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 23:35:02,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 23:35:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states.
[2020-09-24 23:35:02,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 23:35:02,594 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 23:35:02,595 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]
[2020-09-24 23:35:02,595 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:02,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2059425041, now seen corresponding path program 1 times
[2020-09-24 23:35:02,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:02,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977824888]
[2020-09-24 23:35:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:03,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:03,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:07,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:07,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 23:35:07,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 23:35:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4227
[2020-09-24 23:35:07,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 23:35:07,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61
[2020-09-24 23:35:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 23:35:07,593 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:07,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:07,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:07,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:07,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:07,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:07,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294
[2020-09-24 23:35:07,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:07,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 23:35:07,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-24 23:35:08,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:08,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:08,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:08,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:08,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:35:08,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:08,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 23:35:08,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:08,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:35:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:08,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 23:35:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:08,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 23:35:08,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:08,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:08,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:08,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 23:35:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:08,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 23:35:08,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:08,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:08,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:08,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 23:35:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:08,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:08,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:08,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:08,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:08,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:08,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:08,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:08,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:08,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:35:08,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977824888]
[2020-09-24 23:35:08,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:08,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 23:35:08,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358335209]
[2020-09-24 23:35:08,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 23:35:08,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:08,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 23:35:08,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 23:35:08,264 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 4 states.
[2020-09-24 23:35:08,866 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:09,824 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions.
[2020-09-24 23:35:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 23:35:09,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153
[2020-09-24 23:35:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:09,854 INFO L225 Difference]: With dead ends: 365
[2020-09-24 23:35:09,854 INFO L226 Difference]: Without dead ends: 238
[2020-09-24 23:35:09,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 23:35:09,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2020-09-24 23:35:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201.
[2020-09-24 23:35:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states.
[2020-09-24 23:35:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 214 transitions.
[2020-09-24 23:35:09,966 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 214 transitions. Word has length 153
[2020-09-24 23:35:09,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:09,970 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 214 transitions.
[2020-09-24 23:35:09,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 23:35:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 214 transitions.
[2020-09-24 23:35:09,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2020-09-24 23:35:09,976 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 23:35:09,976 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]
[2020-09-24 23:35:09,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 23:35:09,977 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:09,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:09,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1046525994, now seen corresponding path program 1 times
[2020-09-24 23:35:09,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:09,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606416633]
[2020-09-24 23:35:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:10,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:10,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192
[2020-09-24 23:35:13,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 23:35:13,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3057
[2020-09-24 23:35:13,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 23:35:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-24 23:35:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95
[2020-09-24 23:35:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,475 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 23:35:13,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 23:35:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 23:35:13,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281
[2020-09-24 23:35:13,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-24 23:35:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 23:35:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:13,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:13,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:13,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 23:35:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:13,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:13,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:13,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 23:35:13,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 23:35:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:13,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 23:35:13,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 23:35:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:13,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 23:35:13,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 23:35:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 23:35:13,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 23:35:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2020-09-24 23:35:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:13,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 23:35:13,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 23:35:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:13,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:13,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2020-09-24 23:35:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:13,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:13,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:13,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:13,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:13,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 23:35:13,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 23:35:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 23:35:13,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 23:35:13,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 23:35:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145
[2020-09-24 23:35:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 23:35:14,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 23:35:14,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 23:35:14,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 23:35:14,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 23:35:14,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 23:35:14,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST
[2020-09-24 23:35:14,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 23:35:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 23:35:14,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 23:35:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 23:35:14,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 23:35:14,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606416633]
[2020-09-24 23:35:14,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 23:35:14,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 23:35:14,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458029489]
[2020-09-24 23:35:14,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 23:35:14,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 23:35:14,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 23:35:14,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 23:35:14,151 INFO L87 Difference]: Start difference. First operand 201 states and 214 transitions. Second operand 9 states.
[2020-09-24 23:35:14,616 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 23:35:16,166 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188
[2020-09-24 23:35:16,742 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190
[2020-09-24 23:35:17,085 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:35:17,435 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 23:35:17,731 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 23:35:18,131 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 23:35:18,487 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 198
[2020-09-24 23:35:18,891 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 23:35:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 23:35:19,603 INFO L93 Difference]: Finished difference Result 419 states and 500 transitions.
[2020-09-24 23:35:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-24 23:35:19,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157
[2020-09-24 23:35:19,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 23:35:19,609 INFO L225 Difference]: With dead ends: 419
[2020-09-24 23:35:19,609 INFO L226 Difference]: Without dead ends: 311
[2020-09-24 23:35:19,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306
[2020-09-24 23:35:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states.
[2020-09-24 23:35:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 275.
[2020-09-24 23:35:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states.
[2020-09-24 23:35:19,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 301 transitions.
[2020-09-24 23:35:19,666 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 301 transitions. Word has length 157
[2020-09-24 23:35:19,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 23:35:19,666 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 301 transitions.
[2020-09-24 23:35:19,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 23:35:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 301 transitions.
[2020-09-24 23:35:19,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-24 23:35:19,671 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 23:35:19,671 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]
[2020-09-24 23:35:19,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 23:35:19,672 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 23:35:19,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 23:35:19,672 INFO L82 PathProgramCache]: Analyzing trace with hash -645930008, now seen corresponding path program 1 times
[2020-09-24 23:35:19,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 23:35:19,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311203409]
[2020-09-24 23:35:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 23:35:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 23:35:19,750 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 23:35:19,750 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 23:35:19,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 23:35:19,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:35:19 BoogieIcfgContainer
[2020-09-24 23:35:19,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 23:35:19,790 INFO L168 Benchmark]: Toolchain (without parser) took 19646.70 ms. Allocated memory was 138.9 MB in the beginning and 506.5 MB in the end (delta: 367.5 MB). Free memory was 99.8 MB in the beginning and 295.6 MB in the end (delta: -195.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,792 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.00 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 172.6 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,794 INFO L168 Benchmark]: Boogie Preprocessor took 95.62 ms. Allocated memory is still 202.4 MB. Free memory was 172.6 MB in the beginning and 168.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,795 INFO L168 Benchmark]: RCFGBuilder took 1403.94 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 183.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,800 INFO L168 Benchmark]: TraceAbstraction took 17322.03 ms. Allocated memory was 234.4 MB in the beginning and 506.5 MB in the end (delta: 272.1 MB). Free memory was 183.3 MB in the beginning and 295.6 MB in the end (delta: -112.3 MB). Peak memory consumption was 159.8 MB. Max. memory is 7.1 GB.
[2020-09-24 23:35:19,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 815.00 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 99.1 MB in the beginning and 172.6 MB in the end (delta: -73.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 95.62 ms. Allocated memory is still 202.4 MB. Free memory was 172.6 MB in the beginning and 168.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1403.94 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 183.3 MB in the end (delta: -14.7 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 17322.03 ms. Allocated memory was 234.4 MB in the beginning and 506.5 MB in the end (delta: 272.1 MB). Free memory was 183.3 MB in the beginning and 295.6 MB in the end (delta: -112.3 MB). Peak memory consumption was 159.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L40] int cleanupTimeShifts = 4;
[L224] int pumpRunning = 0;
[L225] int systemActive = 1;
[L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L786] int waterLevel = 1;
[L787] int methaneLevelCritical = 0;
[L121] int retValue_acc ;
[L122] int tmp ;
[L126] FCALL select_helpers()
[L127] FCALL select_features()
[L128] CALL, EXPR valid_product()
[L411] int retValue_acc ;
[L414] retValue_acc = 1
[L415] 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()
[L154] int splverifierCounter ;
[L155] int tmp ;
[L156] int tmp___0 ;
[L157] int tmp___1 ;
[L158] int tmp___2 ;
[L161] splverifierCounter = 0
[L163] COND TRUE 1
[L165] COND TRUE splverifierCounter < 4
[L171] tmp = __VERIFIER_nondet_int()
[L173] COND TRUE \read(tmp)
[L175] CALL waterRise()
[L804] COND TRUE waterLevel < 2
[L805] waterLevel = waterLevel + 1
[L175] RET waterRise()
[L181] tmp___0 = __VERIFIER_nondet_int()
[L183] COND FALSE !(\read(tmp___0))
[L191] tmp___2 = __VERIFIER_nondet_int()
[L193] COND TRUE \read(tmp___2)
[L206] CALL timeShift()
[L232] COND FALSE !(\read(pumpRunning))
[L239] COND TRUE \read(systemActive)
[L241] FCALL processEnvironment()
[L247] CALL __utac_acc__Specification3_spec__1()
[L352] int tmp ;
[L353] int tmp___0 ;
[L354] int tmp___1 ;
[L358] CALL, EXPR isMethaneLevelCritical()
[L825] int retValue_acc ;
[L828] retValue_acc = methaneLevelCritical
[L829] return (retValue_acc);
[L358] RET, EXPR isMethaneLevelCritical()
[L358] tmp = isMethaneLevelCritical()
[L360] COND FALSE !(\read(tmp))
[L364] CALL, EXPR getWaterLevel()
[L857] int retValue_acc ;
[L860] retValue_acc = waterLevel
[L861] return (retValue_acc);
[L364] RET, EXPR getWaterLevel()
[L364] tmp___0 = getWaterLevel()
[L366] COND TRUE tmp___0 == 2
[L368] CALL, EXPR isPumpRunning()
[L305] int retValue_acc ;
[L308] retValue_acc = pumpRunning
[L309] return (retValue_acc);
[L368] RET, EXPR isPumpRunning()
[L368] tmp___1 = isPumpRunning()
[L370] COND FALSE !(\read(tmp___1))
[L374] CALL __automaton_fail()
[L148] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 35 procedures, 587 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 391 SDtfs, 527 SDslu, 707 SDs, 0 SdLazy, 1112 SolverSat, 168 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 73 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 481 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 140372 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...