/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-b7b32d2
[2021-02-21 15:31:57,988 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-02-21 15:31:57,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-02-21 15:31:58,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-02-21 15:31:58,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-02-21 15:31:58,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-02-21 15:31:58,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-02-21 15:31:58,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-02-21 15:31:58,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-02-21 15:31:58,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-02-21 15:31:58,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-02-21 15:31:58,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-02-21 15:31:58,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-02-21 15:31:58,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-02-21 15:31:58,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-02-21 15:31:58,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-21 15:31:58,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-21 15:31:58,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-21 15:31:58,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-21 15:31:58,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-21 15:31:58,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-21 15:31:58,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-21 15:31:58,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-02-21 15:31:58,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-21 15:31:58,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-02-21 15:31:58,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-02-21 15:31:58,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-02-21 15:31:58,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-02-21 15:31:58,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-02-21 15:31:58,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-02-21 15:31:58,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-02-21 15:31:58,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-02-21 15:31:58,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-02-21 15:31:58,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-02-21 15:31:58,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-02-21 15:31:58,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-02-21 15:31:58,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-02-21 15:31:58,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-02-21 15:31:58,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-02-21 15:31:58,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-02-21 15:31:58,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-02-21 15:31:58,142 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
[2021-02-21 15:31:58,189 INFO L113 SettingsManager]: Loading preferences was successful
[2021-02-21 15:31:58,189 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-21 15:31:58,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-02-21 15:31:58,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-02-21 15:31:58,195 INFO L138 SettingsManager]: * Use SBE=true
[2021-02-21 15:31:58,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-21 15:31:58,196 INFO L138 SettingsManager]: * sizeof long=4
[2021-02-21 15:31:58,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-02-21 15:31:58,196 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-02-21 15:31:58,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-02-21 15:31:58,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-02-21 15:31:58,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-21 15:31:58,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-02-21 15:31:58,198 INFO L138 SettingsManager]: * sizeof long double=12
[2021-02-21 15:31:58,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-02-21 15:31:58,198 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-02-21 15:31:58,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-02-21 15:31:58,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-21 15:31:58,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-02-21 15:31:58,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-02-21 15:31:58,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-21 15:31:58,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-21 15:31:58,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-02-21 15:31:58,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-02-21 15:31:58,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-02-21 15:31:58,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-02-21 15:31:58,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-21 15:31:58,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-02-21 15:31:58,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-02-21 15:31:58,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-21 15:31:58,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-21 15:31:58,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-21 15:31:58,605 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-02-21 15:31:58,606 INFO L275 PluginConnector]: CDTParser initialized
[2021-02-21 15:31:58,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2021-02-21 15:31:58,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e088d6e/c74856e87a474ee9a08ff68a09b89ffe/FLAGc578c2bbc
[2021-02-21 15:31:59,446 INFO L306 CDTParser]: Found 1 translation units.
[2021-02-21 15:31:59,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c
[2021-02-21 15:31:59,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e088d6e/c74856e87a474ee9a08ff68a09b89ffe/FLAGc578c2bbc
[2021-02-21 15:31:59,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0e088d6e/c74856e87a474ee9a08ff68a09b89ffe
[2021-02-21 15:31:59,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-21 15:31:59,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-21 15:31:59,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-21 15:31:59,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-21 15:31:59,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-21 15:31:59,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:31:59" (1/1) ...
[2021-02-21 15:31:59,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2666e175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:31:59, skipping insertion in model container
[2021-02-21 15:31:59,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:31:59" (1/1) ...
[2021-02-21 15:31:59,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-02-21 15:31:59,793 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-02-21 15:31:59,999 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c[4955,4968]
[2021-02-21 15:32:00,110 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-21 15:32:00,122 INFO L203 MainTranslator]: Completed pre-run
[2021-02-21 15:32:00,152 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c[4955,4968]
[2021-02-21 15:32:00,230 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-21 15:32:00,282 INFO L208 MainTranslator]: Completed translation
[2021-02-21 15:32:00,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00 WrapperNode
[2021-02-21 15:32:00,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-21 15:32:00,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-21 15:32:00,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-21 15:32:00,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-02-21 15:32:00,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (1/1) ...
[2021-02-21 15:32:00,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-21 15:32:00,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-21 15:32:00,449 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-02-21 15:32:00,450 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-02-21 15:32:00,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (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
[2021-02-21 15:32:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2021-02-21 15:32:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2021-02-21 15:32:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2021-02-21 15:32:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2021-02-21 15:32:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2021-02-21 15:32:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2021-02-21 15:32:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2021-02-21 15:32:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2021-02-21 15:32:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem
[2021-02-21 15:32:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2021-02-21 15:32:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-02-21 15:32:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-21 15:32:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2021-02-21 15:32:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2021-02-21 15:32:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2021-02-21 15:32:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-02-21 15:32:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2021-02-21 15:32:00,580 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2021-02-21 15:32:00,581 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2021-02-21 15:32:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-21 15:32:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-21 15:32:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-21 15:32:01,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-21 15:32:01,766 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2021-02-21 15:32:01,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:32:01 BoogieIcfgContainer
[2021-02-21 15:32:01,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-21 15:32:01,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-21 15:32:01,771 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-02-21 15:32:01,774 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-02-21 15:32:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:31:59" (1/3) ...
[2021-02-21 15:32:01,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160135e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:32:01, skipping insertion in model container
[2021-02-21 15:32:01,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:32:00" (2/3) ...
[2021-02-21 15:32:01,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160135e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:32:01, skipping insertion in model container
[2021-02-21 15:32:01,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:32:01" (3/3) ...
[2021-02-21 15:32:01,778 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c
[2021-02-21 15:32:01,785 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-02-21 15:32:01,792 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-21 15:32:01,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-21 15:32:01,842 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-02-21 15:32:01,842 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-02-21 15:32:01,842 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-02-21 15:32:01,843 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-21 15:32:01,843 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-21 15:32:01,843 INFO L381 AbstractCegarLoop]: Difference is false
[2021-02-21 15:32:01,843 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-21 15:32:01,843 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-21 15:32:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states.
[2021-02-21 15:32:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-02-21 15:32:01,878 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:01,879 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]
[2021-02-21 15:32:01,879 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:01,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:01,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1501041024, now seen corresponding path program 1 times
[2021-02-21 15:32:01,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:01,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791429170]
[2021-02-21 15:32:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,607 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2021-02-21 15:32:02,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:32:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:32:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-02-21 15:32:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-02-21 15:32:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2021-02-21 15:32:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2021-02-21 15:32:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2021-02-21 15:32:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2021-02-21 15:32:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:02,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:02,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:32:02,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791429170]
[2021-02-21 15:32:02,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:32:02,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-02-21 15:32:02,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524410240]
[2021-02-21 15:32:02,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-02-21 15:32:02,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:32:02,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-02-21 15:32:02,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-02-21 15:32:02,785 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states.
[2021-02-21 15:32:04,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:32:04,131 INFO L93 Difference]: Finished difference Result 316 states and 408 transitions.
[2021-02-21 15:32:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-02-21 15:32:04,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52
[2021-02-21 15:32:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:32:04,147 INFO L225 Difference]: With dead ends: 316
[2021-02-21 15:32:04,147 INFO L226 Difference]: Without dead ends: 171
[2021-02-21 15:32:04,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-02-21 15:32:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2021-02-21 15:32:04,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136.
[2021-02-21 15:32:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states.
[2021-02-21 15:32:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions.
[2021-02-21 15:32:04,246 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52
[2021-02-21 15:32:04,247 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:32:04,247 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions.
[2021-02-21 15:32:04,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2021-02-21 15:32:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions.
[2021-02-21 15:32:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2021-02-21 15:32:04,251 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:04,251 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]
[2021-02-21 15:32:04,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-21 15:32:04,252 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:04,252 INFO L82 PathProgramCache]: Analyzing trace with hash -775826925, now seen corresponding path program 1 times
[2021-02-21 15:32:04,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:04,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955680026]
[2021-02-21 15:32:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:04,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,660 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2021-02-21 15:32:04,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:32:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:32:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-02-21 15:32:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-02-21 15:32:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2021-02-21 15:32:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2021-02-21 15:32:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2021-02-21 15:32:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2021-02-21 15:32:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:04,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:04,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:32:04,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955680026]
[2021-02-21 15:32:04,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:32:04,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-02-21 15:32:04,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684544438]
[2021-02-21 15:32:04,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-02-21 15:32:04,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:32:04,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-02-21 15:32:04,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-02-21 15:32:04,728 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 4 states.
[2021-02-21 15:32:05,261 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 205
[2021-02-21 15:32:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:32:06,223 INFO L93 Difference]: Finished difference Result 236 states and 285 transitions.
[2021-02-21 15:32:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-02-21 15:32:06,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2021-02-21 15:32:06,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:32:06,238 INFO L225 Difference]: With dead ends: 236
[2021-02-21 15:32:06,238 INFO L226 Difference]: Without dead ends: 155
[2021-02-21 15:32:06,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-02-21 15:32:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states.
[2021-02-21 15:32:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127.
[2021-02-21 15:32:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states.
[2021-02-21 15:32:06,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions.
[2021-02-21 15:32:06,320 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 53
[2021-02-21 15:32:06,320 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:32:06,328 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions.
[2021-02-21 15:32:06,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2021-02-21 15:32:06,328 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions.
[2021-02-21 15:32:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2021-02-21 15:32:06,335 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:06,335 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]
[2021-02-21 15:32:06,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-02-21 15:32:06,335 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:06,336 INFO L82 PathProgramCache]: Analyzing trace with hash 849098833, now seen corresponding path program 1 times
[2021-02-21 15:32:06,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:06,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729036715]
[2021-02-21 15:32:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:06,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:06,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:06,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:06,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-21 15:32:06,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-21 15:32:06,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-21 15:32:06,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,814 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2021-02-21 15:32:06,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:32:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5
[2021-02-21 15:32:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:32:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-02-21 15:32:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-02-21 15:32:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2021-02-21 15:32:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2021-02-21 15:32:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2021-02-21 15:32:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2021-02-21 15:32:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:06,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:06,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:32:06,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729036715]
[2021-02-21 15:32:06,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:32:06,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-02-21 15:32:06,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402891304]
[2021-02-21 15:32:06,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-02-21 15:32:06,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:32:06,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-02-21 15:32:06,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2021-02-21 15:32:06,906 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 8 states.
[2021-02-21 15:32:07,369 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2021-02-21 15:32:07,838 WARN L202 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:08,200 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:08,560 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:09,461 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205
[2021-02-21 15:32:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:32:11,562 INFO L93 Difference]: Finished difference Result 442 states and 540 transitions.
[2021-02-21 15:32:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-02-21 15:32:11,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58
[2021-02-21 15:32:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:32:11,567 INFO L225 Difference]: With dead ends: 442
[2021-02-21 15:32:11,567 INFO L226 Difference]: Without dead ends: 339
[2021-02-21 15:32:11,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2021-02-21 15:32:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states.
[2021-02-21 15:32:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 262.
[2021-02-21 15:32:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states.
[2021-02-21 15:32:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 311 transitions.
[2021-02-21 15:32:11,650 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 311 transitions. Word has length 58
[2021-02-21 15:32:11,650 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:32:11,651 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 311 transitions.
[2021-02-21 15:32:11,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2021-02-21 15:32:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 311 transitions.
[2021-02-21 15:32:11,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2021-02-21 15:32:11,653 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:11,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-02-21 15:32:11,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-02-21 15:32:11,654 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:11,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:11,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2117202560, now seen corresponding path program 1 times
[2021-02-21 15:32:11,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:11,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219013507]
[2021-02-21 15:32:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:11,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:11,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:11,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,076 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2021-02-21 15:32:12,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:32:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5
[2021-02-21 15:32:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:32:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-02-21 15:32:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-02-21 15:32:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2021-02-21 15:32:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2021-02-21 15:32:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2021-02-21 15:32:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49
[2021-02-21 15:32:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2021-02-21 15:32:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:12,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:12,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:32:12,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219013507]
[2021-02-21 15:32:12,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:32:12,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-02-21 15:32:12,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624147299]
[2021-02-21 15:32:12,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-02-21 15:32:12,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:32:12,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-02-21 15:32:12,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2021-02-21 15:32:12,208 INFO L87 Difference]: Start difference. First operand 262 states and 311 transitions. Second operand 8 states.
[2021-02-21 15:32:12,687 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2021-02-21 15:32:14,208 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:14,668 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:15,068 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206
[2021-02-21 15:32:15,450 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2021-02-21 15:32:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:32:16,543 INFO L93 Difference]: Finished difference Result 809 states and 1045 transitions.
[2021-02-21 15:32:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-02-21 15:32:16,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63
[2021-02-21 15:32:16,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:32:16,550 INFO L225 Difference]: With dead ends: 809
[2021-02-21 15:32:16,551 INFO L226 Difference]: Without dead ends: 571
[2021-02-21 15:32:16,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182
[2021-02-21 15:32:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states.
[2021-02-21 15:32:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 501.
[2021-02-21 15:32:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states.
[2021-02-21 15:32:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 605 transitions.
[2021-02-21 15:32:16,711 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 605 transitions. Word has length 63
[2021-02-21 15:32:16,711 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:32:16,711 INFO L480 AbstractCegarLoop]: Abstraction has 501 states and 605 transitions.
[2021-02-21 15:32:16,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2021-02-21 15:32:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 605 transitions.
[2021-02-21 15:32:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2021-02-21 15:32:16,714 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:16,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-02-21 15:32:16,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-02-21 15:32:16,715 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:16,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1608154, now seen corresponding path program 1 times
[2021-02-21 15:32:16,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:16,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238955423]
[2021-02-21 15:32:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:16,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:16,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:16,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,054 WARN L202 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 202
[2021-02-21 15:32:17,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-21 15:32:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:17,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-02-21 15:32:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-02-21 15:32:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-02-21 15:32:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2021-02-21 15:32:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2021-02-21 15:32:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-21 15:32:17,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2021-02-21 15:32:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2021-02-21 15:32:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2021-02-21 15:32:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2021-02-21 15:32:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-21 15:32:17,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-21 15:32:17,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-21 15:32:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-21 15:32:17,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238955423]
[2021-02-21 15:32:17,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-21 15:32:17,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-02-21 15:32:17,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966527410]
[2021-02-21 15:32:17,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-02-21 15:32:17,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-02-21 15:32:17,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-02-21 15:32:17,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-02-21 15:32:17,150 INFO L87 Difference]: Start difference. First operand 501 states and 605 transitions. Second operand 6 states.
[2021-02-21 15:32:17,577 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204
[2021-02-21 15:32:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-21 15:32:19,580 INFO L93 Difference]: Finished difference Result 1225 states and 1554 transitions.
[2021-02-21 15:32:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-02-21 15:32:19,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67
[2021-02-21 15:32:19,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-21 15:32:19,586 INFO L225 Difference]: With dead ends: 1225
[2021-02-21 15:32:19,586 INFO L226 Difference]: Without dead ends: 748
[2021-02-21 15:32:19,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-02-21 15:32:19,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states.
[2021-02-21 15:32:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 695.
[2021-02-21 15:32:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states.
[2021-02-21 15:32:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 840 transitions.
[2021-02-21 15:32:19,783 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 840 transitions. Word has length 67
[2021-02-21 15:32:19,783 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-21 15:32:19,783 INFO L480 AbstractCegarLoop]: Abstraction has 695 states and 840 transitions.
[2021-02-21 15:32:19,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2021-02-21 15:32:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 840 transitions.
[2021-02-21 15:32:19,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2021-02-21 15:32:19,785 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-21 15:32:19,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-02-21 15:32:19,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-02-21 15:32:19,786 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-21 15:32:19,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-21 15:32:19,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1840610554, now seen corresponding path program 1 times
[2021-02-21 15:32:19,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-02-21 15:32:19,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942431658]
[2021-02-21 15:32:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-21 15:32:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-21 15:32:19,855 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-21 15:32:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-21 15:32:19,918 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-21 15:32:19,994 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-02-21 15:32:19,995 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-02-21 15:32:19,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-02-21 15:32:20,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:32:20 BoogieIcfgContainer
[2021-02-21 15:32:20,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-02-21 15:32:20,171 INFO L168 Benchmark]: Toolchain (without parser) took 20477.01 ms. Allocated memory was 151.0 MB in the beginning and 402.7 MB in the end (delta: 251.7 MB). Free memory was 124.5 MB in the beginning and 293.8 MB in the end (delta: -169.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,172 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.57 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 102.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,173 INFO L168 Benchmark]: Boogie Preprocessor took 163.35 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 98.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,174 INFO L168 Benchmark]: RCFGBuilder took 1319.49 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.5 MB in the beginning and 158.3 MB in the end (delta: -59.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,174 INFO L168 Benchmark]: TraceAbstraction took 18399.03 ms. Allocated memory was 181.4 MB in the beginning and 402.7 MB in the end (delta: 221.2 MB). Free memory was 157.8 MB in the beginning and 293.8 MB in the end (delta: -136.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 8.0 GB.
[2021-02-21 15:32:20,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 573.57 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 102.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 163.35 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 98.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 1319.49 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.5 MB in the beginning and 158.3 MB in the end (delta: -59.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 18399.03 ms. Allocated memory was 181.4 MB in the beginning and 402.7 MB in the end (delta: 221.2 MB). Free memory was 157.8 MB in the beginning and 293.8 MB in the end (delta: -136.0 MB). Peak memory consumption was 84.7 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 320]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L42] int cleanupTimeShifts = 4;
[L187] int waterLevel = 1;
[L188] int methaneLevelCritical = 0;
[L494] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L695] int pumpRunning = 0;
[L696] int systemActive = 1;
VAL [\old(cleanupTimeShifts)=178, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=150, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L123] int retValue_acc ;
[L124] 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]
[L128] 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]
[L129] 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]
[L130] 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]
[L307] int retValue_acc ;
[L310] retValue_acc = 1
[L311] 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]
[L130] 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]
[L130] tmp = valid_product()
[L132] 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]
[L134] 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]
[L135] 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]
[L114] 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]
[L889] int splverifierCounter ;
[L890] int tmp ;
[L891] int tmp___0 ;
[L892] int tmp___1 ;
[L893] int tmp___2 ;
[L896] 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]
[L898] 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]
[L900] 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]
[L906] tmp = __VERIFIER_nondet_int()
[L908] 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]
[L910] 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]
[L205] COND TRUE waterLevel < 2
[L206] 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]
[L910] 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]
[L916] tmp___0 = __VERIFIER_nondet_int()
[L918] 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]
[L926] tmp___2 = __VERIFIER_nondet_int()
[L928] COND FALSE !(\read(tmp___2))
[L934] tmp___1 = __VERIFIER_nondet_int()
[L936] COND TRUE \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=1, tmp___2=0, waterLevel=2]
[L938] CALL stopSystem()
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]
[L868] COND FALSE !(\read(pumpRunning))
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]
[L875] systemActive = 0
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L938] RET stopSystem()
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=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2]
[L945] 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=0, waterLevel=2]
[L702] 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=0, waterLevel=2]
[L709] COND FALSE !(\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=0, waterLevel=2]
[L717] CALL __utac_acc__Specification3_spec__1()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L151] int tmp ;
[L152] int tmp___0 ;
[L153] int tmp___1 ;
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L157] 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=0, waterLevel=2]
[L226] int retValue_acc ;
[L229] retValue_acc = methaneLevelCritical
[L230] 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=0, waterLevel=2]
[L157] 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=0, waterLevel=2]
[L157] tmp = isMethaneLevelCritical()
[L159] 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=0, tmp=0, waterLevel=2]
[L163] CALL, EXPR getWaterLevel()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L258] int retValue_acc ;
[L261] retValue_acc = waterLevel
[L262] 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=0, retValue_acc=2, systemActive=0, waterLevel=2]
[L163] 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=0, systemActive=0, tmp=0, waterLevel=2]
[L163] tmp___0 = getWaterLevel()
[L165] COND TRUE tmp___0 == 2
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2]
[L167] CALL, EXPR isPumpRunning()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L801] int retValue_acc ;
[L804] retValue_acc = pumpRunning
[L805] 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=0, waterLevel=2]
[L167] RET, EXPR isPumpRunning()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2]
[L167] tmp___1 = isPumpRunning()
[L169] COND FALSE !(\read(tmp___1))
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2]
[L173] CALL __automaton_fail()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L320] reach_error()
VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 41 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 631 SDtfs, 1057 SDslu, 429 SDs, 0 SdLazy, 2292 SolverSat, 689 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=695occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 263 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 87900 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...