/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=0.2 --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_product20.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:56:26,038 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:56:26,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:56:26,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:56:26,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:56:26,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:56:26,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:56:26,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:56:26,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:56:26,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:56:26,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:56:26,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:56:26,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:56:26,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:56:26,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:56:26,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:56:26,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:56:26,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:56:26,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:56:26,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:56:26,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:56:26,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:56:26,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:56:26,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:56:26,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:56:26,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:56:26,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:56:26,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:56:26,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:56:26,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:56:26,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:56:26,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:56:26,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:56:26,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:56:26,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:56:26,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:56:26,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:56:26,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:56:26,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:56:26,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:56:26,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:56:26,168 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 10:56:26,194 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 10:56:26,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:56:26,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:56:26,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 10:56:26,197 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 10:56:26,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:56:26,197 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 10:56:26,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 10:56:26,197 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 10:56:26,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 10:56:26,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:56:26,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:56:26,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:56:26,198 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 10:56:26,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 10:56:26,199 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 10:56:26,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:56:26,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:56:26,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 10:56:26,200 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 10:56:26,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 10:56:26,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:56:26,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:56:26,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:56:26,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:56:26,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 10:56:26,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:56:26,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:56:26,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 10:56:26,202 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true;
[2020-09-25 10:56:26,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:56:26,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:56:26,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:56:26,715 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 10:56:26,715 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 10:56:26,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-25 10:56:26,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed184dcee/9e1cf5d8c926465f959b8dd797267d34/FLAGc5bf20f49
[2020-09-25 10:56:27,403 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 10:56:27,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c
[2020-09-25 10:56:27,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed184dcee/9e1cf5d8c926465f959b8dd797267d34/FLAGc5bf20f49
[2020-09-25 10:56:27,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed184dcee/9e1cf5d8c926465f959b8dd797267d34
[2020-09-25 10:56:27,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:56:27,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:56:27,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:27,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:56:27,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:56:27,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:27" (1/1) ...
[2020-09-25 10:56:27,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:27, skipping insertion in model container
[2020-09-25 10:56:27,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:56:27" (1/1) ...
[2020-09-25 10:56:27,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 10:56:27,821 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:56:28,189 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:28,205 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 10:56:28,422 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:56:28,459 INFO L208 MainTranslator]: Completed translation
[2020-09-25 10:56:28,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28 WrapperNode
[2020-09-25 10:56:28,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:56:28,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:56:28,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:56:28,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:56:28,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (1/1) ...
[2020-09-25 10:56:28,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:56:28,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:56:28,584 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:56:28,584 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:56:28,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (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 10:56:28,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-25 10:56:28,690 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-25 10:56:28,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:28,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:28,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:28,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-25 10:56:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-25 10:56:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-25 10:56:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-25 10:56:28,693 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-25 10:56:28,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-25 10:56:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-25 10:56:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:56:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:28,695 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-25 10:56:28,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:28,696 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-25 10:56:28,696 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-25 10:56:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-25 10:56:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-25 10:56:28,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-25 10:56:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-25 10:56:28,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-25 10:56:28,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-25 10:56:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:56:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:56:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 10:56:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-25 10:56:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-25 10:56:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-25 10:56:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-25 10:56:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-25 10:56:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:56:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 10:56:28,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-25 10:56:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:56:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 10:56:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:56:28,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:56:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-25 10:56:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-25 10:56:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:56:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-25 10:56:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-25 10:56:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-25 10:56:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-25 10:56:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-25 10:56:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-25 10:56:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-25 10:56:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-25 10:56:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-25 10:56:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-25 10:56:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:56:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-25 10:56:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-25 10:56:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-25 10:56:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-25 10:56:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-25 10:56:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-25 10:56:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2020-09-25 10:56:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 10:56:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:56:29,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:56:29,985 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-25 10:56:29,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:29 BoogieIcfgContainer
[2020-09-25 10:56:29,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:56:29,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:56:29,996 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:56:30,003 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:56:30,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:56:27" (1/3) ...
[2020-09-25 10:56:30,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cec3507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:30, skipping insertion in model container
[2020-09-25 10:56:30,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:56:28" (2/3) ...
[2020-09-25 10:56:30,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cec3507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:56:30, skipping insertion in model container
[2020-09-25 10:56:30,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:56:29" (3/3) ...
[2020-09-25 10:56:30,007 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c
[2020-09-25 10:56:30,019 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:56:30,029 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:56:30,050 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:56:30,080 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:56:30,081 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 10:56:30,081 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:56:30,081 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:56:30,081 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:56:30,081 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 10:56:30,081 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:56:30,081 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:56:30,108 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states.
[2020-09-25 10:56:30,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-25 10:56:30,126 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:56:30,128 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 10:56:30,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:30,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:30,135 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times
[2020-09-25 10:56:30,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:30,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226905643]
[2020-09-25 10:56:30,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:30,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:30,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:32,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:35,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:35,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-25 10:56:35,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:35,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055
[2020-09-25 10:56:35,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:35,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:35,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-25 10:56:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81
[2020-09-25 10:56:35,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89
[2020-09-25 10:56:35,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8
[2020-09-25 10:56:36,146 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:36,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:36,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304
[2020-09-25 10:56:36,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77
[2020-09-25 10:56:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:36,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:36,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:36,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:36,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:36,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:36,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:36,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:56:36,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:36,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:36,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:36,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-25 10:56:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:36,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 10:56:36,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:36,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-25 10:56:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:36,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 10:56:36,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 10:56:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:36,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-25 10:56:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:36,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:36,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:36,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:36,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 10:56:36,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:36,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:36,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:36,775 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 10:56:36,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226905643]
[2020-09-25 10:56:36,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:36,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 10:56:36,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960607071]
[2020-09-25 10:56:36,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 10:56:36,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:36,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 10:56:36,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 10:56:36,815 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 8 states.
[2020-09-25 10:56:37,461 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:39,081 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:39,524 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:39,913 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:40,299 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:40,641 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-25 10:56:41,015 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:41,334 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-25 10:56:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:42,543 INFO L93 Difference]: Finished difference Result 604 states and 743 transitions.
[2020-09-25 10:56:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 10:56:42,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153
[2020-09-25 10:56:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:42,570 INFO L225 Difference]: With dead ends: 604
[2020-09-25 10:56:42,570 INFO L226 Difference]: Without dead ends: 419
[2020-09-25 10:56:42,578 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 10:56:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2020-09-25 10:56:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 372.
[2020-09-25 10:56:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states.
[2020-09-25 10:56:42,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 420 transitions.
[2020-09-25 10:56:42,723 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 420 transitions. Word has length 153
[2020-09-25 10:56:42,723 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:42,724 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 420 transitions.
[2020-09-25 10:56:42,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 10:56:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 420 transitions.
[2020-09-25 10:56:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-25 10:56:42,730 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:56:42,731 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]
[2020-09-25 10:56:42,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:56:42,732 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash -323103225, now seen corresponding path program 1 times
[2020-09-25 10:56:42,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:42,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817581056]
[2020-09-25 10:56:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:42,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:42,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:43,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:47,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:47,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-25 10:56:47,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:56:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003
[2020-09-25 10:56:47,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:47,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 10:56:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80
[2020-09-25 10:56:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-25 10:56:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,165 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-25 10:56:48,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:56:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-25 10:56:48,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241
[2020-09-25 10:56:48,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76
[2020-09-25 10:56:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-25 10:56:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-25 10:56:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-25 10:56:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:56:48,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-25 10:56:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-25 10:56:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 10:56:48,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 10:56:48,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-25 10:56:48,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2020-09-25 10:56:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:56:48,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 10:56:48,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:56:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:56:48,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:56:48,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-25 10:56:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137
[2020-09-25 10:56:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147
[2020-09-25 10:56:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:56:48,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:56:48,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:56:48,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 10:56:48,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:56:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 10:56:48,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:56:48,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 10:56:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:56:48,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-25 10:56:48,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:56:48,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:56:48,616 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 10:56:48,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817581056]
[2020-09-25 10:56:48,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:56:48,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 10:56:48,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443248824]
[2020-09-25 10:56:48,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 10:56:48,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:56:48,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 10:56:48,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 10:56:48,622 INFO L87 Difference]: Start difference. First operand 372 states and 420 transitions. Second operand 6 states.
[2020-09-25 10:56:49,172 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-25 10:56:50,056 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-25 10:56:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:56:52,732 INFO L93 Difference]: Finished difference Result 1159 states and 1450 transitions.
[2020-09-25 10:56:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 10:56:52,732 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159
[2020-09-25 10:56:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:56:52,743 INFO L225 Difference]: With dead ends: 1159
[2020-09-25 10:56:52,743 INFO L226 Difference]: Without dead ends: 897
[2020-09-25 10:56:52,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2020-09-25 10:56:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states.
[2020-09-25 10:56:52,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 787.
[2020-09-25 10:56:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states.
[2020-09-25 10:56:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 929 transitions.
[2020-09-25 10:56:52,884 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 929 transitions. Word has length 159
[2020-09-25 10:56:52,885 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:56:52,885 INFO L479 AbstractCegarLoop]: Abstraction has 787 states and 929 transitions.
[2020-09-25 10:56:52,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 10:56:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 929 transitions.
[2020-09-25 10:56:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2020-09-25 10:56:52,891 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:56:52,891 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 10:56:52,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:56:52,891 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:56:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:56:52,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1393167539, now seen corresponding path program 1 times
[2020-09-25 10:56:52,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:56:52,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270092860]
[2020-09-25 10:56:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:56:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:56:52,963 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:56:52,963 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:56:52,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:56:52,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:52 BoogieIcfgContainer
[2020-09-25 10:56:52,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:56:52,999 INFO L168 Benchmark]: Toolchain (without parser) took 25285.09 ms. Allocated memory was 138.9 MB in the beginning and 554.2 MB in the end (delta: 415.2 MB). Free memory was 101.2 MB in the beginning and 240.9 MB in the end (delta: -139.7 MB). Peak memory consumption was 275.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:52,999 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.75 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 172.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,001 INFO L168 Benchmark]: Boogie Preprocessor took 122.29 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,002 INFO L168 Benchmark]: RCFGBuilder took 1411.42 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 178.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,004 INFO L168 Benchmark]: TraceAbstraction took 23000.44 ms. Allocated memory was 235.4 MB in the beginning and 554.2 MB in the end (delta: 318.8 MB). Free memory was 178.1 MB in the beginning and 240.9 MB in the end (delta: -62.8 MB). Peak memory consumption was 255.9 MB. Max. memory is 7.1 GB.
[2020-09-25 10:56:53,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 737.75 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 172.3 MB in the end (delta: -71.7 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 122.29 ms. Allocated memory is still 202.9 MB. Free memory was 172.3 MB in the beginning and 168.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1411.42 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 168.1 MB in the beginning and 178.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 23000.44 ms. Allocated memory was 235.4 MB in the beginning and 554.2 MB in the end (delta: 318.8 MB). Free memory was 178.1 MB in the beginning and 240.9 MB in the end (delta: -62.8 MB). Peak memory consumption was 255.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L444] int cleanupTimeShifts = 4;
[L590] int pumpRunning = 0;
[L591] int systemActive = 1;
[L834] int waterLevel = 1;
[L835] int methaneLevelCritical = 0;
[L522] int retValue_acc ;
[L523] int tmp ;
[L527] FCALL select_helpers()
[L528] FCALL select_features()
[L529] CALL, EXPR valid_product()
[L69] int retValue_acc ;
[L72] retValue_acc = 1
[L73] return (retValue_acc);
[L529] RET, EXPR valid_product()
[L529] tmp = valid_product()
[L531] COND TRUE \read(tmp)
[L533] FCALL setup()
[L534] CALL runTest()
[L516] CALL test()
[L766] int splverifierCounter ;
[L767] int tmp ;
[L768] int tmp___0 ;
[L769] int tmp___1 ;
[L770] int tmp___2 ;
[L773] splverifierCounter = 0
[L775] COND TRUE 1
[L777] COND TRUE splverifierCounter < 4
[L783] tmp = __VERIFIER_nondet_int()
[L785] COND TRUE \read(tmp)
[L787] CALL waterRise()
[L852] COND TRUE waterLevel < 2
[L853] waterLevel = waterLevel + 1
[L787] RET waterRise()
[L793] tmp___0 = __VERIFIER_nondet_int()
[L795] COND FALSE !(\read(tmp___0))
[L803] tmp___2 = __VERIFIER_nondet_int()
[L805] COND TRUE \read(tmp___2)
[L807] CALL startSystem()
[L760] systemActive = 1
[L807] RET startSystem()
[L822] CALL timeShift()
[L597] COND FALSE !(\read(pumpRunning))
[L604] COND TRUE \read(systemActive)
[L606] CALL processEnvironment()
[L626] int tmp ;
[L629] COND FALSE !(\read(pumpRunning))
[L644] FCALL processEnvironment__wrappee__base()
[L606] RET processEnvironment()
[L612] CALL __utac_acc__Specification3_spec__1()
[L550] int tmp ;
[L551] int tmp___0 ;
[L552] int tmp___1 ;
[L556] CALL, EXPR isMethaneLevelCritical()
[L873] int retValue_acc ;
[L876] retValue_acc = methaneLevelCritical
[L877] return (retValue_acc);
[L556] RET, EXPR isMethaneLevelCritical()
[L556] tmp = isMethaneLevelCritical()
[L558] COND FALSE !(\read(tmp))
[L562] CALL, EXPR getWaterLevel()
[L905] int retValue_acc ;
[L908] retValue_acc = waterLevel
[L909] return (retValue_acc);
[L562] RET, EXPR getWaterLevel()
[L562] tmp___0 = getWaterLevel()
[L564] COND TRUE tmp___0 == 2
[L566] CALL, EXPR isPumpRunning()
[L678] int retValue_acc ;
[L681] retValue_acc = pumpRunning
[L682] return (retValue_acc);
[L566] RET, EXPR isPumpRunning()
[L566] tmp___1 = isPumpRunning()
[L568] COND FALSE !(\read(tmp___1))
[L572] CALL __automaton_fail()
[L927] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 497 SDtfs, 1055 SDslu, 918 SDs, 0 SdLazy, 1921 SolverSat, 354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=787occurred 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, 157 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 133634 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...