/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-d623d84
[2020-07-21 15:42:25,679 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-21 15:42:25,682 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 15:42:25,696 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 15:42:25,697 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 15:42:25,699 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 15:42:25,700 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 15:42:25,703 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 15:42:25,707 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 15:42:25,708 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 15:42:25,717 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 15:42:25,718 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 15:42:25,718 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 15:42:25,721 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 15:42:25,722 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 15:42:25,724 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 15:42:25,725 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 15:42:25,729 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 15:42:25,731 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 15:42:25,733 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 15:42:25,737 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 15:42:25,739 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 15:42:25,740 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 15:42:25,742 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 15:42:25,748 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 15:42:25,749 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 15:42:25,750 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 15:42:25,752 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 15:42:25,753 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 15:42:25,755 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 15:42:25,755 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 15:42:25,756 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 15:42:25,757 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-21 15:42:25,762 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-21 15:42:25,766 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 15:42:25,766 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 15:42:25,767 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-21 15:42:25,767 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-21 15:42:25,767 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-21 15:42:25,768 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-21 15:42:25,770 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 15:42:25,771 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-21 15:42:25,810 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-21 15:42:25,810 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 15:42:25,811 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 15:42:25,812 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-21 15:42:25,812 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-21 15:42:25,812 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 15:42:25,813 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-21 15:42:25,813 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-21 15:42:25,813 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-21 15:42:25,813 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-21 15:42:25,813 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-21 15:42:25,814 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-21 15:42:25,815 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 15:42:25,815 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-21 15:42:25,815 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-21 15:42:25,816 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-21 15:42:25,817 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 15:42:25,817 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 15:42:25,817 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 15:42:25,817 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 15:42:25,817 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-21 15:42:25,818 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:25,818 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 15:42:25,818 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-21 15:42:25,819 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 -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2
[2020-07-21 15:42:26,083 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 15:42:26,097 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 15:42:26,101 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 15:42:26,104 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-21 15:42:26,106 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-21 15:42:26,107 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c
[2020-07-21 15:42:26,188 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e0db15f/cdb9928a938c4426b71ba85b19f0d756/FLAGc509c0a63
[2020-07-21 15:42:26,668 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-21 15:42:26,668 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c
[2020-07-21 15:42:26,688 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e0db15f/cdb9928a938c4426b71ba85b19f0d756/FLAGc509c0a63
[2020-07-21 15:42:26,987 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9e0db15f/cdb9928a938c4426b71ba85b19f0d756
[2020-07-21 15:42:26,997 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 15:42:26,999 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 15:42:27,001 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 15:42:27,001 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 15:42:27,004 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 15:42:27,004 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:26" (1/1) ...
[2020-07-21 15:42:27,007 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f403a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27, skipping insertion in model container
[2020-07-21 15:42:27,007 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:26" (1/1) ...
[2020-07-21 15:42:27,016 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-21 15:42:27,060 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-21 15:42:27,373 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 15:42:27,478 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-21 15:42:27,612 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-21 15:42:27,647 INFO  L208         MainTranslator]: Completed translation
[2020-07-21 15:42:27,647 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27 WrapperNode
[2020-07-21 15:42:27,647 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 15:42:27,648 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 15:42:27,648 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 15:42:27,648 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 15:42:27,662 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,663 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,682 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,683 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,716 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,727 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,740 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
[2020-07-21 15:42:27,756 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 15:42:27,757 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 15:42:27,760 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 15:42:27,760 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-21 15:42:27,761 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2020-07-21 15:42:27,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 15:42:27,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 15:42:27,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-07-21 15:42:27,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-07-21 15:42:27,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-07-21 15:42:27,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-07-21 15:42:27,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-07-21 15:42:27,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-07-21 15:42:27,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-07-21 15:42:27,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-07-21 15:42:27,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-07-21 15:42:27,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-07-21 15:42:27,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-07-21 15:42:27,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-07-21 15:42:27,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-07-21 15:42:27,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 15:42:27,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-07-21 15:42:27,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-07-21 15:42:27,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery
[2020-07-21 15:42:27,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-07-21 15:42:27,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-07-21 15:42:27,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-07-21 15:42:27,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-07-21 15:42:27,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-07-21 15:42:27,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-07-21 15:42:27,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-07-21 15:42:27,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-07-21 15:42:27,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-07-21 15:42:27,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure startSystem
[2020-07-21 15:42:27,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-07-21 15:42:27,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-07-21 15:42:27,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-07-21 15:42:27,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-07-21 15:42:27,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-07-21 15:42:27,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-07-21 15:42:27,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 15:42:27,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-21 15:42:27,858 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-07-21 15:42:27,858 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-07-21 15:42:27,859 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-07-21 15:42:27,859 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-07-21 15:42:27,860 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-07-21 15:42:27,860 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-07-21 15:42:27,860 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-07-21 15:42:27,860 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-07-21 15:42:27,860 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-07-21 15:42:27,861 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-07-21 15:42:27,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-07-21 15:42:27,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-21 15:42:27,861 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-07-21 15:42:27,862 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-07-21 15:42:27,863 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-07-21 15:42:27,864 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-07-21 15:42:27,864 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-07-21 15:42:27,865 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-07-21 15:42:27,865 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-07-21 15:42:27,865 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-07-21 15:42:27,865 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-07-21 15:42:27,866 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-07-21 15:42:27,866 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-07-21 15:42:27,867 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure startSystem
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-07-21 15:42:27,868 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-07-21 15:42:27,869 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-07-21 15:42:27,869 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 15:42:27,869 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-07-21 15:42:27,869 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 15:42:29,141 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 15:42:29,141 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-07-21 15:42:29,146 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:29 BoogieIcfgContainer
[2020-07-21 15:42:29,147 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 15:42:29,148 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 15:42:29,148 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 15:42:29,152 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-21 15:42:29,152 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:42:26" (1/3) ...
[2020-07-21 15:42:29,153 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:29, skipping insertion in model container
[2020-07-21 15:42:29,153 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:27" (2/3) ...
[2020-07-21 15:42:29,154 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a68f777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:29, skipping insertion in model container
[2020-07-21 15:42:29,154 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:29" (3/3) ...
[2020-07-21 15:42:29,156 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c
[2020-07-21 15:42:29,167 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 15:42:29,175 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 15:42:29,189 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 15:42:29,214 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-21 15:42:29,215 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-21 15:42:29,215 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 15:42:29,215 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 15:42:29,215 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 15:42:29,216 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-21 15:42:29,216 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 15:42:29,216 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 15:42:29,242 INFO  L276                IsEmpty]: Start isEmpty. Operand 186 states.
[2020-07-21 15:42:29,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-07-21 15:42:29,252 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:29,253 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]
[2020-07-21 15:42:29,253 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:29,259 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:29,260 INFO  L82        PathProgramCache]: Analyzing trace with hash 267821041, now seen corresponding path program 1 times
[2020-07-21 15:42:29,268 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:29,269 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136287923]
[2020-07-21 15:42:29,269 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:29,704 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:29,705 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:29,712 INFO  L263         TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-21 15:42:29,721 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:29,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:29,751 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:29,753 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136287923]
[2020-07-21 15:42:29,753 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:29,754 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-21 15:42:29,755 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264400816]
[2020-07-21 15:42:29,760 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-21 15:42:29,761 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:29,776 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-21 15:42:29,777 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 15:42:29,779 INFO  L87              Difference]: Start difference. First operand 186 states. Second operand 2 states.
[2020-07-21 15:42:29,825 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:29,826 INFO  L93              Difference]: Finished difference Result 286 states and 353 transitions.
[2020-07-21 15:42:29,826 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-07-21 15:42:29,827 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 46
[2020-07-21 15:42:29,828 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:29,842 INFO  L225             Difference]: With dead ends: 286
[2020-07-21 15:42:29,842 INFO  L226             Difference]: Without dead ends: 143
[2020-07-21 15:42:29,847 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 15:42:29,867 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2020-07-21 15:42:29,903 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143.
[2020-07-21 15:42:29,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 143 states.
[2020-07-21 15:42:29,908 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions.
[2020-07-21 15:42:29,910 INFO  L78                 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46
[2020-07-21 15:42:29,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:29,911 INFO  L479      AbstractCegarLoop]: Abstraction has 143 states and 168 transitions.
[2020-07-21 15:42:29,912 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-21 15:42:29,912 INFO  L276                IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions.
[2020-07-21 15:42:29,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-07-21 15:42:29,916 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:29,916 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:30,130 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:30,131 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:30,131 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:30,132 INFO  L82        PathProgramCache]: Analyzing trace with hash -395653053, now seen corresponding path program 1 times
[2020-07-21 15:42:30,132 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:30,132 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930864188]
[2020-07-21 15:42:30,133 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:30,578 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:30,578 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:30,582 INFO  L263         TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core
[2020-07-21 15:42:30,586 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:30,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:30,618 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:30,619 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930864188]
[2020-07-21 15:42:30,619 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:30,619 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-21 15:42:30,620 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695778922]
[2020-07-21 15:42:30,621 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-21 15:42:30,622 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:30,622 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-21 15:42:30,622 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:30,622 INFO  L87              Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states.
[2020-07-21 15:42:30,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:30,660 INFO  L93              Difference]: Finished difference Result 225 states and 263 transitions.
[2020-07-21 15:42:30,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-21 15:42:30,661 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 47
[2020-07-21 15:42:30,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:30,667 INFO  L225             Difference]: With dead ends: 225
[2020-07-21 15:42:30,667 INFO  L226             Difference]: Without dead ends: 134
[2020-07-21 15:42:30,669 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:30,671 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 134 states.
[2020-07-21 15:42:30,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134.
[2020-07-21 15:42:30,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 134 states.
[2020-07-21 15:42:30,700 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions.
[2020-07-21 15:42:30,700 INFO  L78                 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47
[2020-07-21 15:42:30,702 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:30,702 INFO  L479      AbstractCegarLoop]: Abstraction has 134 states and 156 transitions.
[2020-07-21 15:42:30,702 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-21 15:42:30,702 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions.
[2020-07-21 15:42:30,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-07-21 15:42:30,706 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:30,707 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]
[2020-07-21 15:42:30,907 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:30,908 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:30,910 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:30,911 INFO  L82        PathProgramCache]: Analyzing trace with hash 1814461049, now seen corresponding path program 1 times
[2020-07-21 15:42:30,911 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:30,911 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136080899]
[2020-07-21 15:42:30,911 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:31,275 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:31,276 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:31,280 INFO  L263         TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-07-21 15:42:31,285 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:31,307 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:31,307 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:31,308 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136080899]
[2020-07-21 15:42:31,308 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:31,308 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-21 15:42:31,308 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319626983]
[2020-07-21 15:42:31,309 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-21 15:42:31,309 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:31,309 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-21 15:42:31,310 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:31,310 INFO  L87              Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 3 states.
[2020-07-21 15:42:31,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:31,359 INFO  L93              Difference]: Finished difference Result 350 states and 419 transitions.
[2020-07-21 15:42:31,360 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-21 15:42:31,360 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 52
[2020-07-21 15:42:31,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:31,363 INFO  L225             Difference]: With dead ends: 350
[2020-07-21 15:42:31,363 INFO  L226             Difference]: Without dead ends: 240
[2020-07-21 15:42:31,364 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:31,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 240 states.
[2020-07-21 15:42:31,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234.
[2020-07-21 15:42:31,386 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 234 states.
[2020-07-21 15:42:31,388 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions.
[2020-07-21 15:42:31,389 INFO  L78                 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 52
[2020-07-21 15:42:31,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:31,389 INFO  L479      AbstractCegarLoop]: Abstraction has 234 states and 279 transitions.
[2020-07-21 15:42:31,389 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-21 15:42:31,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions.
[2020-07-21 15:42:31,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2020-07-21 15:42:31,392 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:31,392 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]
[2020-07-21 15:42:31,606 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:31,607 INFO  L427      AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:31,607 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:31,607 INFO  L82        PathProgramCache]: Analyzing trace with hash -1060505325, now seen corresponding path program 1 times
[2020-07-21 15:42:31,608 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:31,608 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142010976]
[2020-07-21 15:42:31,608 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:31,980 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:31,980 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:31,985 INFO  L263         TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core
[2020-07-21 15:42:31,992 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:32,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:32,039 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:32,040 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142010976]
[2020-07-21 15:42:32,040 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:32,040 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-21 15:42:32,040 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190275836]
[2020-07-21 15:42:32,041 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 15:42:32,041 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:32,041 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 15:42:32,042 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-07-21 15:42:32,042 INFO  L87              Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 6 states.
[2020-07-21 15:42:32,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:32,324 INFO  L93              Difference]: Finished difference Result 635 states and 795 transitions.
[2020-07-21 15:42:32,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-21 15:42:32,325 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 57
[2020-07-21 15:42:32,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:32,329 INFO  L225             Difference]: With dead ends: 635
[2020-07-21 15:42:32,329 INFO  L226             Difference]: Without dead ends: 425
[2020-07-21 15:42:32,331 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2020-07-21 15:42:32,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 425 states.
[2020-07-21 15:42:32,362 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425.
[2020-07-21 15:42:32,362 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 425 states.
[2020-07-21 15:42:32,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 528 transitions.
[2020-07-21 15:42:32,365 INFO  L78                 Accepts]: Start accepts. Automaton has 425 states and 528 transitions. Word has length 57
[2020-07-21 15:42:32,366 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:32,366 INFO  L479      AbstractCegarLoop]: Abstraction has 425 states and 528 transitions.
[2020-07-21 15:42:32,366 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 15:42:32,366 INFO  L276                IsEmpty]: Start isEmpty. Operand 425 states and 528 transitions.
[2020-07-21 15:42:32,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-07-21 15:42:32,370 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:32,370 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]
[2020-07-21 15:42:32,583 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:32,584 INFO  L427      AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:32,585 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:32,585 INFO  L82        PathProgramCache]: Analyzing trace with hash 1254258393, now seen corresponding path program 1 times
[2020-07-21 15:42:32,585 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:32,586 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066520024]
[2020-07-21 15:42:32,586 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:32,954 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:32,955 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:32,959 INFO  L263         TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 15 conjunts are in the unsatisfiable core
[2020-07-21 15:42:32,962 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:32,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:32,996 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:32,996 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066520024]
[2020-07-21 15:42:32,996 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:32,996 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-21 15:42:32,997 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847170064]
[2020-07-21 15:42:32,997 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 15:42:32,997 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:32,998 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 15:42:32,998 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-07-21 15:42:32,998 INFO  L87              Difference]: Start difference. First operand 425 states and 528 transitions. Second operand 6 states.
[2020-07-21 15:42:33,295 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:33,296 INFO  L93              Difference]: Finished difference Result 1030 states and 1333 transitions.
[2020-07-21 15:42:33,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-21 15:42:33,298 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 61
[2020-07-21 15:42:33,298 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:33,302 INFO  L225             Difference]: With dead ends: 1030
[2020-07-21 15:42:33,303 INFO  L226             Difference]: Without dead ends: 629
[2020-07-21 15:42:33,305 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2020-07-21 15:42:33,306 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 629 states.
[2020-07-21 15:42:33,336 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 611.
[2020-07-21 15:42:33,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 611 states.
[2020-07-21 15:42:33,340 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 757 transitions.
[2020-07-21 15:42:33,341 INFO  L78                 Accepts]: Start accepts. Automaton has 611 states and 757 transitions. Word has length 61
[2020-07-21 15:42:33,341 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:33,341 INFO  L479      AbstractCegarLoop]: Abstraction has 611 states and 757 transitions.
[2020-07-21 15:42:33,341 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 15:42:33,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 611 states and 757 transitions.
[2020-07-21 15:42:33,344 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 129
[2020-07-21 15:42:33,344 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:33,344 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:33,557 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:33,558 INFO  L427      AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:33,559 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:33,559 INFO  L82        PathProgramCache]: Analyzing trace with hash 98669811, now seen corresponding path program 1 times
[2020-07-21 15:42:33,559 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:33,560 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465167931]
[2020-07-21 15:42:33,561 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:33,830 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:33,830 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:33,834 INFO  L263         TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 3 conjunts are in the unsatisfiable core
[2020-07-21 15:42:33,839 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:33,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-21 15:42:33,898 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:33,898 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465167931]
[2020-07-21 15:42:33,898 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:33,899 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-21 15:42:33,899 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50738870]
[2020-07-21 15:42:33,899 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-21 15:42:33,900 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:33,900 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-21 15:42:33,900 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:33,900 INFO  L87              Difference]: Start difference. First operand 611 states and 757 transitions. Second operand 3 states.
[2020-07-21 15:42:34,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:34,029 INFO  L93              Difference]: Finished difference Result 1002 states and 1246 transitions.
[2020-07-21 15:42:34,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-21 15:42:34,030 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 128
[2020-07-21 15:42:34,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:34,034 INFO  L225             Difference]: With dead ends: 1002
[2020-07-21 15:42:34,034 INFO  L226             Difference]: Without dead ends: 415
[2020-07-21 15:42:34,041 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-21 15:42:34,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 415 states.
[2020-07-21 15:42:34,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 405.
[2020-07-21 15:42:34,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 405 states.
[2020-07-21 15:42:34,095 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 491 transitions.
[2020-07-21 15:42:34,096 INFO  L78                 Accepts]: Start accepts. Automaton has 405 states and 491 transitions. Word has length 128
[2020-07-21 15:42:34,097 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:34,097 INFO  L479      AbstractCegarLoop]: Abstraction has 405 states and 491 transitions.
[2020-07-21 15:42:34,097 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-21 15:42:34,098 INFO  L276                IsEmpty]: Start isEmpty. Operand 405 states and 491 transitions.
[2020-07-21 15:42:34,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2020-07-21 15:42:34,103 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:34,104 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:34,317 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:34,318 INFO  L427      AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:34,319 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:34,319 INFO  L82        PathProgramCache]: Analyzing trace with hash -2016412385, now seen corresponding path program 1 times
[2020-07-21 15:42:34,320 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:34,320 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655186423]
[2020-07-21 15:42:34,321 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:34,618 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:34,619 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:34,623 INFO  L263         TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-07-21 15:42:34,627 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:34,671 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2020-07-21 15:42:34,671 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:34,671 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655186423]
[2020-07-21 15:42:34,672 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:34,672 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-21 15:42:34,672 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839291041]
[2020-07-21 15:42:34,673 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 15:42:34,673 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:34,673 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 15:42:34,673 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-07-21 15:42:34,674 INFO  L87              Difference]: Start difference. First operand 405 states and 491 transitions. Second operand 6 states.
[2020-07-21 15:42:34,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:34,732 INFO  L93              Difference]: Finished difference Result 800 states and 1012 transitions.
[2020-07-21 15:42:34,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-21 15:42:34,736 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 147
[2020-07-21 15:42:34,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:34,740 INFO  L225             Difference]: With dead ends: 800
[2020-07-21 15:42:34,740 INFO  L226             Difference]: Without dead ends: 419
[2020-07-21 15:42:34,743 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2020-07-21 15:42:34,744 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2020-07-21 15:42:34,768 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 415.
[2020-07-21 15:42:34,768 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 415 states.
[2020-07-21 15:42:34,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 502 transitions.
[2020-07-21 15:42:34,772 INFO  L78                 Accepts]: Start accepts. Automaton has 415 states and 502 transitions. Word has length 147
[2020-07-21 15:42:34,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:34,773 INFO  L479      AbstractCegarLoop]: Abstraction has 415 states and 502 transitions.
[2020-07-21 15:42:34,773 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 15:42:34,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 415 states and 502 transitions.
[2020-07-21 15:42:34,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2020-07-21 15:42:34,779 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:34,779 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:34,992 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:34,993 INFO  L427      AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:34,994 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:34,994 INFO  L82        PathProgramCache]: Analyzing trace with hash -415341279, now seen corresponding path program 1 times
[2020-07-21 15:42:34,995 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:34,995 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292245613]
[2020-07-21 15:42:34,996 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:35,207 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s)
[2020-07-21 15:42:35,207 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:35,209 INFO  L263         TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-07-21 15:42:35,213 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:35,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2020-07-21 15:42:35,245 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:35,246 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292245613]
[2020-07-21 15:42:35,246 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:35,246 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-21 15:42:35,246 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285257395]
[2020-07-21 15:42:35,247 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-21 15:42:35,247 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:35,247 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-21 15:42:35,248 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-21 15:42:35,248 INFO  L87              Difference]: Start difference. First operand 415 states and 502 transitions. Second operand 5 states.
[2020-07-21 15:42:35,286 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:35,286 INFO  L93              Difference]: Finished difference Result 787 states and 981 transitions.
[2020-07-21 15:42:35,286 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-07-21 15:42:35,287 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 147
[2020-07-21 15:42:35,287 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:35,289 INFO  L225             Difference]: With dead ends: 787
[2020-07-21 15:42:35,290 INFO  L226             Difference]: Without dead ends: 396
[2020-07-21 15:42:35,291 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-21 15:42:35,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 396 states.
[2020-07-21 15:42:35,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396.
[2020-07-21 15:42:35,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 396 states.
[2020-07-21 15:42:35,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 477 transitions.
[2020-07-21 15:42:35,315 INFO  L78                 Accepts]: Start accepts. Automaton has 396 states and 477 transitions. Word has length 147
[2020-07-21 15:42:35,315 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:35,315 INFO  L479      AbstractCegarLoop]: Abstraction has 396 states and 477 transitions.
[2020-07-21 15:42:35,315 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-21 15:42:35,315 INFO  L276                IsEmpty]: Start isEmpty. Operand 396 states and 477 transitions.
[2020-07-21 15:42:35,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2020-07-21 15:42:35,318 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:35,318 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:35,532 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:35,533 INFO  L427      AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:35,534 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:35,534 INFO  L82        PathProgramCache]: Analyzing trace with hash 1078571170, now seen corresponding path program 1 times
[2020-07-21 15:42:35,534 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:35,535 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571298804]
[2020-07-21 15:42:35,535 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:35,714 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s)
[2020-07-21 15:42:35,714 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:35,717 INFO  L263         TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 10 conjunts are in the unsatisfiable core
[2020-07-21 15:42:35,721 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:35,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:35,795 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 15:42:35,796 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571298804]
[2020-07-21 15:42:35,796 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 15:42:35,796 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-07-21 15:42:35,796 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756364602]
[2020-07-21 15:42:35,797 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-07-21 15:42:35,797 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:35,797 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-07-21 15:42:35,797 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-21 15:42:35,798 INFO  L87              Difference]: Start difference. First operand 396 states and 477 transitions. Second operand 6 states.
[2020-07-21 15:42:36,849 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:36,850 INFO  L93              Difference]: Finished difference Result 1121 states and 1427 transitions.
[2020-07-21 15:42:36,850 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-07-21 15:42:36,850 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 147
[2020-07-21 15:42:36,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:36,856 INFO  L225             Difference]: With dead ends: 1121
[2020-07-21 15:42:36,857 INFO  L226             Difference]: Without dead ends: 749
[2020-07-21 15:42:36,859 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-07-21 15:42:36,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 749 states.
[2020-07-21 15:42:36,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 720.
[2020-07-21 15:42:36,901 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 720 states.
[2020-07-21 15:42:36,905 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 875 transitions.
[2020-07-21 15:42:36,905 INFO  L78                 Accepts]: Start accepts. Automaton has 720 states and 875 transitions. Word has length 147
[2020-07-21 15:42:36,906 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:36,906 INFO  L479      AbstractCegarLoop]: Abstraction has 720 states and 875 transitions.
[2020-07-21 15:42:36,906 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-07-21 15:42:36,906 INFO  L276                IsEmpty]: Start isEmpty. Operand 720 states and 875 transitions.
[2020-07-21 15:42:36,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-07-21 15:42:36,910 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:36,911 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:37,125 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:37,126 INFO  L427      AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:37,126 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:37,127 INFO  L82        PathProgramCache]: Analyzing trace with hash -220870584, now seen corresponding path program 1 times
[2020-07-21 15:42:37,127 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:37,128 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159695592]
[2020-07-21 15:42:37,128 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:37,488 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:37,488 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 15:42:37,493 INFO  L263         TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-07-21 15:42:37,497 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 15:42:37,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 15:42:37,612 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 15:42:38,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2020-07-21 15:42:38,018 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159695592]
[2020-07-21 15:42:38,018 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-21 15:42:38,018 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12
[2020-07-21 15:42:38,018 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485102741]
[2020-07-21 15:42:38,019 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-07-21 15:42:38,019 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 15:42:38,020 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-07-21 15:42:38,020 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2020-07-21 15:42:38,020 INFO  L87              Difference]: Start difference. First operand 720 states and 875 transitions. Second operand 12 states.
[2020-07-21 15:42:39,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 15:42:39,554 INFO  L93              Difference]: Finished difference Result 1949 states and 2572 transitions.
[2020-07-21 15:42:39,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2020-07-21 15:42:39,555 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 151
[2020-07-21 15:42:39,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 15:42:39,563 INFO  L225             Difference]: With dead ends: 1949
[2020-07-21 15:42:39,564 INFO  L226             Difference]: Without dead ends: 1253
[2020-07-21 15:42:39,567 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 290 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506
[2020-07-21 15:42:39,569 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1253 states.
[2020-07-21 15:42:39,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 972.
[2020-07-21 15:42:39,629 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 972 states.
[2020-07-21 15:42:39,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1185 transitions.
[2020-07-21 15:42:39,635 INFO  L78                 Accepts]: Start accepts. Automaton has 972 states and 1185 transitions. Word has length 151
[2020-07-21 15:42:39,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-21 15:42:39,636 INFO  L479      AbstractCegarLoop]: Abstraction has 972 states and 1185 transitions.
[2020-07-21 15:42:39,636 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-07-21 15:42:39,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 972 states and 1185 transitions.
[2020-07-21 15:42:39,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 204
[2020-07-21 15:42:39,640 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-21 15:42:39,640 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 15:42:39,855 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:39,856 INFO  L427      AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 15:42:39,857 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 15:42:39,857 INFO  L82        PathProgramCache]: Analyzing trace with hash 402231489, now seen corresponding path program 2 times
[2020-07-21 15:42:39,858 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 15:42:39,858 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928402310]
[2020-07-21 15:42:39,858 INFO  L95    rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:40,188 INFO  L228   tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s)
[2020-07-21 15:42:40,188 INFO  L229   tOrderPrioritization]: Conjunction of SSA is sat
[2020-07-21 15:42:40,188 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 15:42:40,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-21 15:42:40,335 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 15:42:40,842 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-21 15:42:40,842 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-07-21 15:42:41,055 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 15:42:41,299 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:42:41 BoogieIcfgContainer
[2020-07-21 15:42:41,300 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 15:42:41,303 INFO  L168              Benchmark]: Toolchain (without parser) took 14303.10 ms. Allocated memory was 140.0 MB in the beginning and 385.9 MB in the end (delta: 245.9 MB). Free memory was 104.1 MB in the beginning and 253.0 MB in the end (delta: -148.9 MB). Peak memory consumption was 221.4 MB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,303 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,304 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 647.05 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.6 MB in the beginning and 173.8 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,305 INFO  L168              Benchmark]: Boogie Preprocessor took 108.76 ms. Allocated memory is still 205.0 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,306 INFO  L168              Benchmark]: RCFGBuilder took 1389.80 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 193.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,306 INFO  L168              Benchmark]: TraceAbstraction took 12151.57 ms. Allocated memory was 235.4 MB in the beginning and 385.9 MB in the end (delta: 150.5 MB). Free memory was 192.3 MB in the beginning and 253.0 MB in the end (delta: -60.7 MB). Peak memory consumption was 214.2 MB. Max. memory is 7.1 GB.
[2020-07-21 15:42:41,310 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 647.05 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 103.6 MB in the beginning and 173.8 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 108.76 ms. Allocated memory is still 205.0 MB. Free memory was 173.8 MB in the beginning and 169.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1389.80 ms. Allocated memory was 205.0 MB in the beginning and 235.4 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 193.7 MB in the end (delta: -23.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 12151.57 ms. Allocated memory was 235.4 MB in the beginning and 385.9 MB in the end (delta: 150.5 MB). Free memory was 192.3 MB in the beginning and 253.0 MB in the end (delta: -60.7 MB). Peak memory consumption was 214.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L238]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L444]              int cleanupTimeShifts  =    4;
[L556]              int pumpRunning  =    0;
[L557]              int systemActive  =    1;
[L774]              int waterLevel  =    1;
[L775]              int methaneLevelCritical  =    0;
        VAL         [\old(cleanupTimeShifts)=72, \old(head)=34, \old(head)=37, \old(methaneLevelCritical)=70, \old(pumpRunning)=45, \old(systemActive)=36, \old(waterLevel)=38, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L525]              int retValue_acc ;
[L526]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L530]  FCALL       select_helpers()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L531]  FCALL       select_features()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L532]  CALL, EXPR  valid_product()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L963]              int retValue_acc ;
[L966]              retValue_acc = 1
[L967]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1]
[L532]  RET, EXPR   valid_product()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1]
[L532]              tmp = valid_product()
[L534]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L536]  FCALL       setup()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1]
[L537]  CALL        runTest()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L516]  CALL        test()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L869]              int splverifierCounter ;
[L870]              int tmp ;
[L871]              int tmp___0 ;
[L872]              int tmp___1 ;
[L873]              int tmp___2 ;
[L876]              splverifierCounter = 0
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L878]  COND TRUE   1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L880]  COND TRUE   splverifierCounter < 4
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1]
[L886]              tmp = __VERIFIER_nondet_int()
[L888]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1]
[L890]  CALL        waterRise()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L792]  COND TRUE   waterLevel < 2
[L793]              waterLevel = waterLevel + 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L890]  RET         waterRise()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2]
[L896]              tmp___0 = __VERIFIER_nondet_int()
[L898]  COND FALSE  !(\read(tmp___0))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2]
[L906]              tmp___2 = __VERIFIER_nondet_int()
[L908]  COND FALSE  !(\read(tmp___2))
[L914]              tmp___1 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___1))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L925]  CALL        timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L563]  COND FALSE  !(\read(pumpRunning))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L570]  COND TRUE   \read(systemActive)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L572]  CALL        processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L618]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L621]  COND FALSE  !(\read(pumpRunning))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L636]  CALL        processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L592]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L595]  COND TRUE   ! pumpRunning
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L597]  CALL, EXPR  isHighWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L732]              int retValue_acc ;
[L733]              int tmp ;
[L734]              int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L738]  CALL, EXPR  isHighWaterSensorDry()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L854]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L857]  COND FALSE  !(waterLevel < 2)
[L861]              retValue_acc = 0
[L862]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2]
[L738]  RET, EXPR   isHighWaterSensorDry()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L738]              tmp = isHighWaterSensorDry()
[L740]  COND FALSE  !(\read(tmp))
[L743]              tmp___0 = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2]
[L745]              retValue_acc = tmp___0
[L746]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2]
[L597]  RET, EXPR   isHighWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L597]              tmp = isHighWaterLevel()
[L599]  COND TRUE   \read(tmp)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2]
[L601]  CALL        activatePump()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L651]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L655]  CALL, EXPR  isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L676]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L680]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L813]              int retValue_acc ;
[L816]              retValue_acc = methaneLevelCritical
[L817]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2]
[L680]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L680]              retValue_acc = isMethaneLevelCritical()
[L682]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2]
[L655]  RET, EXPR   isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L655]              tmp = isMethaneAlarm()
[L657]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2]
[L661]  CALL        activatePump__wrappee__highWaterSensor()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L646]              pumpRunning = 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L661]  RET         activatePump__wrappee__highWaterSensor()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2]
[L601]  RET         activatePump()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2]
[L636]  RET         processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L572]  RET         processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L578]  CALL        __utac_acc__Specification4_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L44]               int tmp ;
[L45]               int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L49]   CALL, EXPR  getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L845]              int retValue_acc ;
[L848]              retValue_acc = waterLevel
[L849]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2]
[L49]   RET, EXPR   getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L49]               tmp = getWaterLevel()
[L51]   COND FALSE  !(tmp == 0)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2]
[L578]  RET         __utac_acc__Specification4_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L925]  RET         timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L878]  COND TRUE   1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L880]  COND TRUE   splverifierCounter < 4
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L886]              tmp = __VERIFIER_nondet_int()
[L888]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L896]              tmp___0 = __VERIFIER_nondet_int()
[L898]  COND FALSE  !(\read(tmp___0))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L906]              tmp___2 = __VERIFIER_nondet_int()
[L908]  COND FALSE  !(\read(tmp___2))
[L914]              tmp___1 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___1))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2]
[L925]  CALL        timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L563]  COND TRUE   \read(pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L565]  CALL        lowerWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2]
[L780]  COND TRUE   waterLevel > 0
[L781]              waterLevel = waterLevel - 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L565]  RET         lowerWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L570]  COND TRUE   \read(systemActive)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L572]  CALL        processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L618]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L621]  COND TRUE   \read(pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L623]  CALL, EXPR  isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L676]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L680]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L813]              int retValue_acc ;
[L816]              retValue_acc = methaneLevelCritical
[L817]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1]
[L680]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L680]              retValue_acc = isMethaneLevelCritical()
[L682]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1]
[L623]  RET, EXPR   isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L623]              tmp = isMethaneAlarm()
[L625]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1]
[L631]  CALL        processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L592]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L595]  COND FALSE  !(! pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L610]  FCALL       processEnvironment__wrappee__base()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L631]  RET         processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1]
[L572]  RET         processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L578]  CALL        __utac_acc__Specification4_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L44]               int tmp ;
[L45]               int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L49]   CALL, EXPR  getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L845]              int retValue_acc ;
[L848]              retValue_acc = waterLevel
[L849]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1]
[L49]   RET, EXPR   getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L49]               tmp = getWaterLevel()
[L51]   COND FALSE  !(tmp == 0)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1]
[L578]  RET         __utac_acc__Specification4_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L925]  RET         timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L878]  COND TRUE   1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L880]  COND TRUE   splverifierCounter < 4
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L886]              tmp = __VERIFIER_nondet_int()
[L888]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L896]              tmp___0 = __VERIFIER_nondet_int()
[L898]  COND FALSE  !(\read(tmp___0))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L906]              tmp___2 = __VERIFIER_nondet_int()
[L908]  COND FALSE  !(\read(tmp___2))
[L914]              tmp___1 = __VERIFIER_nondet_int()
[L916]  COND FALSE  !(\read(tmp___1))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1]
[L925]  CALL        timeShift()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L563]  COND TRUE   \read(pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L565]  CALL        lowerWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1]
[L780]  COND TRUE   waterLevel > 0
[L781]              waterLevel = waterLevel - 1
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L565]  RET         lowerWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L570]  COND TRUE   \read(systemActive)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L572]  CALL        processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L618]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L621]  COND TRUE   \read(pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L623]  CALL, EXPR  isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L676]              int retValue_acc ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L680]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L813]              int retValue_acc ;
[L816]              retValue_acc = methaneLevelCritical
[L817]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0]
[L680]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L680]              retValue_acc = isMethaneLevelCritical()
[L682]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0]
[L623]  RET, EXPR   isMethaneAlarm()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L623]              tmp = isMethaneAlarm()
[L625]  COND FALSE  !(\read(tmp))
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0]
[L631]  CALL        processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L592]              int tmp ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L595]  COND FALSE  !(! pumpRunning)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L610]  FCALL       processEnvironment__wrappee__base()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L631]  RET         processEnvironment__wrappee__methaneQuery()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0]
[L572]  RET         processEnvironment()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L578]  CALL        __utac_acc__Specification4_spec__1()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L44]               int tmp ;
[L45]               int tmp___0 ;
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L49]   CALL, EXPR  getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L845]              int retValue_acc ;
[L848]              retValue_acc = waterLevel
[L849]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0]
[L49]   RET, EXPR   getWaterLevel()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L49]               tmp = getWaterLevel()
[L51]   COND TRUE   tmp == 0
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0]
[L53]   CALL, EXPR  isPumpRunning()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L687]              int retValue_acc ;
[L690]              retValue_acc = pumpRunning
[L691]              return (retValue_acc);
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0]
[L53]   RET, EXPR   isPumpRunning()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0]
[L53]               tmp___0 = isPumpRunning()
[L55]   COND TRUE   \read(tmp___0)
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0]
[L57]   CALL        __automaton_fail()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]
[L439]              __VERIFIER_error()
        VAL         [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1789 SDtfs, 1229 SDslu, 3055 SDs, 0 SdLazy, 1670 SolverSat, 631 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1147 GetRequests, 1092 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 348 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1186 NumberOfCodeBlocks, 1040 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1123 ConstructedInterpolants, 0 QuantifiedInterpolants, 224697 SizeOfPredicates, 32 NumberOfNonLiveVariables, 7469 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 180/205 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...