/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 14:47:49,201 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 14:47:49,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 14:47:49,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 14:47:49,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 14:47:49,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 14:47:49,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 14:47:49,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 14:47:49,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 14:47:49,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 14:47:49,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 14:47:49,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 14:47:49,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 14:47:49,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 14:47:49,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 14:47:49,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 14:47:49,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 14:47:49,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 14:47:49,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 14:47:49,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 14:47:49,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 14:47:49,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 14:47:49,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 14:47:49,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 14:47:49,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 14:47:49,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 14:47:49,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 14:47:49,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 14:47:49,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 14:47:49,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 14:47:49,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 14:47:49,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 14:47:49,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 14:47:49,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 14:47:49,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 14:47:49,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 14:47:49,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 14:47:49,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 14:47:49,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 14:47:49,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 14:47:49,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 14:47:49,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 14:47:49,376 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 14:47:49,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 14:47:49,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 14:47:49,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 14:47:49,379 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 14:47:49,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 14:47:49,380 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 14:47:49,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 14:47:49,380 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 14:47:49,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 14:47:49,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 14:47:49,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 14:47:49,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 14:47:49,383 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 14:47:49,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 14:47:49,383 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 14:47:49,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 14:47:49,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 14:47:49,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 14:47:49,384 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 14:47:49,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 14:47:49,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 14:47:49,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 14:47:49,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 14:47:49,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 14:47:49,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 14:47:49,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 14:47:49,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 14:47:49,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 14:47:49,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false
[2020-09-24 14:47:49,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 14:47:49,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 14:47:49,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 14:47:49,856 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 14:47:49,857 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 14:47:49,858 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c
[2020-09-24 14:47:49,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba5a39728/0de48568e77c4c45a7e1605ae3c57bfa/FLAG5a27a3cea
[2020-09-24 14:47:50,548 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 14:47:50,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c
[2020-09-24 14:47:50,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba5a39728/0de48568e77c4c45a7e1605ae3c57bfa/FLAG5a27a3cea
[2020-09-24 14:47:50,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba5a39728/0de48568e77c4c45a7e1605ae3c57bfa
[2020-09-24 14:47:50,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 14:47:50,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 14:47:50,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 14:47:50,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 14:47:50,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 14:47:50,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:47:50" (1/1) ...
[2020-09-24 14:47:50,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:50, skipping insertion in model container
[2020-09-24 14:47:50,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:47:50" (1/1) ...
[2020-09-24 14:47:50,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 14:47:50,940 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 14:47:51,327 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 14:47:51,350 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 14:47:51,545 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 14:47:51,581 INFO L208 MainTranslator]: Completed translation
[2020-09-24 14:47:51,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51 WrapperNode
[2020-09-24 14:47:51,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 14:47:51,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 14:47:51,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 14:47:51,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 14:47:51,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
[2020-09-24 14:47:51,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 14:47:51,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 14:47:51,681 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 14:47:51,681 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 14:47:51,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 14:47:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 14:47:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 14:47:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 14:47:51,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 14:47:51,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry
[2020-09-24 14:47:51,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 14:47:51,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 14:47:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 14:47:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 14:47:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 14:47:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 14:47:51,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 14:47:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 14:47:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 14:47:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 14:47:51,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 14:47:51,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 14:47:51,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 14:47:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 14:47:51,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 14:47:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 14:47:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 14:47:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 14:47:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 14:47:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-24 14:47:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor
[2020-09-24 14:47:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 14:47:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 14:47:52,962 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 14:47:52,962 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 14:47:52,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:47:52 BoogieIcfgContainer
[2020-09-24 14:47:52,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 14:47:52,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 14:47:52,971 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 14:47:52,975 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 14:47:52,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:47:50" (1/3) ...
[2020-09-24 14:47:52,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73de5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:47:52, skipping insertion in model container
[2020-09-24 14:47:52,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:47:51" (2/3) ...
[2020-09-24 14:47:52,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73de5ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:47:52, skipping insertion in model container
[2020-09-24 14:47:52,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:47:52" (3/3) ...
[2020-09-24 14:47:52,979 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c
[2020-09-24 14:47:52,991 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 14:47:53,003 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 14:47:53,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 14:47:53,061 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 14:47:53,061 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 14:47:53,061 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 14:47:53,062 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 14:47:53,062 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 14:47:53,062 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 14:47:53,062 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 14:47:53,062 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 14:47:53,095 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states.
[2020-09-24 14:47:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 14:47:53,113 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:47:53,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:47:53,115 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:47:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:47:53,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1993009160, now seen corresponding path program 1 times
[2020-09-24 14:47:53,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:47:53,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003856716]
[2020-09-24 14:47:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:47:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:53,955 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:47:53,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:47:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:47:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:47:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:47:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:47:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 14:47:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 14:47:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 14:47:54,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003856716]
[2020-09-24 14:47:54,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:47:54,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 14:47:54,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995159556]
[2020-09-24 14:47:54,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 14:47:54,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:47:54,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 14:47:54,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 14:47:54,210 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 3 states.
[2020-09-24 14:47:55,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:47:55,575 INFO L93 Difference]: Finished difference Result 465 states and 549 transitions.
[2020-09-24 14:47:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 14:47:55,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142
[2020-09-24 14:47:55,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:47:55,602 INFO L225 Difference]: With dead ends: 465
[2020-09-24 14:47:55,602 INFO L226 Difference]: Without dead ends: 290
[2020-09-24 14:47:55,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 14:47:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2020-09-24 14:47:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 249.
[2020-09-24 14:47:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states.
[2020-09-24 14:47:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions.
[2020-09-24 14:47:55,719 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 142
[2020-09-24 14:47:55,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:47:55,720 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions.
[2020-09-24 14:47:55,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 14:47:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions.
[2020-09-24 14:47:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2020-09-24 14:47:55,725 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:47:55,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:47:55,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 14:47:55,726 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:47:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:47:55,727 INFO L82 PathProgramCache]: Analyzing trace with hash -534856304, now seen corresponding path program 1 times
[2020-09-24 14:47:55,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:47:55,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892893471]
[2020-09-24 14:47:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:47:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,226 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:47:56,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:47:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:47:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:47:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:47:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:47:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 14:47:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 14:47:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 14:47:56,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892893471]
[2020-09-24 14:47:56,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:47:56,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 14:47:56,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072776529]
[2020-09-24 14:47:56,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 14:47:56,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:47:56,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 14:47:56,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 14:47:56,310 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 4 states.
[2020-09-24 14:47:56,970 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:47:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:47:57,895 INFO L93 Difference]: Finished difference Result 382 states and 424 transitions.
[2020-09-24 14:47:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 14:47:57,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143
[2020-09-24 14:47:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:47:57,903 INFO L225 Difference]: With dead ends: 382
[2020-09-24 14:47:57,903 INFO L226 Difference]: Without dead ends: 273
[2020-09-24 14:47:57,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 14:47:57,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states.
[2020-09-24 14:47:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239.
[2020-09-24 14:47:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-24 14:47:57,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 255 transitions.
[2020-09-24 14:47:57,961 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 255 transitions. Word has length 143
[2020-09-24 14:47:57,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:47:57,964 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 255 transitions.
[2020-09-24 14:47:57,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 14:47:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 255 transitions.
[2020-09-24 14:47:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2020-09-24 14:47:57,972 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:47:57,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:47:57,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 14:47:57,974 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:47:57,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:47:57,974 INFO L82 PathProgramCache]: Analyzing trace with hash -713358115, now seen corresponding path program 1 times
[2020-09-24 14:47:57,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:47:57,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450632389]
[2020-09-24 14:47:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:47:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,414 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:47:58,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:47:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:47:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:47:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:47:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:47:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 14:47:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2020-09-24 14:47:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:47:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 14:47:58,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450632389]
[2020-09-24 14:47:58,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:47:58,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 14:47:58,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695266392]
[2020-09-24 14:47:58,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 14:47:58,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:47:58,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 14:47:58,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 14:47:58,720 INFO L87 Difference]: Start difference. First operand 239 states and 255 transitions. Second operand 9 states.
[2020-09-24 14:47:59,325 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:47:59,793 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:00,033 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:00,333 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:00,617 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:00,890 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:02,273 INFO L93 Difference]: Finished difference Result 402 states and 449 transitions.
[2020-09-24 14:48:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-24 14:48:02,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152
[2020-09-24 14:48:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:02,282 INFO L225 Difference]: With dead ends: 402
[2020-09-24 14:48:02,282 INFO L226 Difference]: Without dead ends: 273
[2020-09-24 14:48:02,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-09-24 14:48:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states.
[2020-09-24 14:48:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 239.
[2020-09-24 14:48:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states.
[2020-09-24 14:48:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions.
[2020-09-24 14:48:02,337 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 152
[2020-09-24 14:48:02,339 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:02,339 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions.
[2020-09-24 14:48:02,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 14:48:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions.
[2020-09-24 14:48:02,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2020-09-24 14:48:02,342 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:02,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:02,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 14:48:02,343 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:02,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:02,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1380723004, now seen corresponding path program 1 times
[2020-09-24 14:48:02,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:02,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52644779]
[2020-09-24 14:48:02,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,760 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:48:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:48:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:48:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:48:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:48:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:48:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 14:48:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2020-09-24 14:48:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148
[2020-09-24 14:48:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 14:48:02,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52644779]
[2020-09-24 14:48:02,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:48:02,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 14:48:02,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703958468]
[2020-09-24 14:48:02,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 14:48:02,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:48:02,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 14:48:02,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-09-24 14:48:02,974 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand 6 states.
[2020-09-24 14:48:03,640 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:05,262 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:05,769 INFO L93 Difference]: Finished difference Result 524 states and 592 transitions.
[2020-09-24 14:48:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-24 14:48:05,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160
[2020-09-24 14:48:05,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:05,775 INFO L225 Difference]: With dead ends: 524
[2020-09-24 14:48:05,775 INFO L226 Difference]: Without dead ends: 395
[2020-09-24 14:48:05,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90
[2020-09-24 14:48:05,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states.
[2020-09-24 14:48:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 336.
[2020-09-24 14:48:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states.
[2020-09-24 14:48:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 361 transitions.
[2020-09-24 14:48:05,823 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 361 transitions. Word has length 160
[2020-09-24 14:48:05,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:05,824 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 361 transitions.
[2020-09-24 14:48:05,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 14:48:05,824 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 361 transitions.
[2020-09-24 14:48:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185
[2020-09-24 14:48:05,826 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:05,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:05,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 14:48:05,827 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:05,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:05,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1083295401, now seen corresponding path program 1 times
[2020-09-24 14:48:05,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:05,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559353331]
[2020-09-24 14:48:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,264 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:48:06,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:48:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:48:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:48:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:48:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:48:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 14:48:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 14:48:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 14:48:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162
[2020-09-24 14:48:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172
[2020-09-24 14:48:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 14:48:06,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559353331]
[2020-09-24 14:48:06,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 14:48:06,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2020-09-24 14:48:06,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372136935]
[2020-09-24 14:48:06,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 14:48:06,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:48:06,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 14:48:06,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182
[2020-09-24 14:48:06,534 INFO L87 Difference]: Start difference. First operand 336 states and 361 transitions. Second operand 14 states.
[2020-09-24 14:48:07,034 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:07,458 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:07,822 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:08,140 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:08,451 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:08,748 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:09,437 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:10,499 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:10,813 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:11,124 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:11,456 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:11,813 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 14:48:12,109 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:12,418 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:12,776 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:13,175 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 14:48:13,521 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:14,921 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:15,220 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:15,581 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:16,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:16,352 INFO L93 Difference]: Finished difference Result 1012 states and 1198 transitions.
[2020-09-24 14:48:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2020-09-24 14:48:16,353 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 184
[2020-09-24 14:48:16,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:16,359 INFO L225 Difference]: With dead ends: 1012
[2020-09-24 14:48:16,359 INFO L226 Difference]: Without dead ends: 786
[2020-09-24 14:48:16,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260
[2020-09-24 14:48:16,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states.
[2020-09-24 14:48:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 689.
[2020-09-24 14:48:16,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states.
[2020-09-24 14:48:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 762 transitions.
[2020-09-24 14:48:16,504 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 762 transitions. Word has length 184
[2020-09-24 14:48:16,505 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:16,505 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 762 transitions.
[2020-09-24 14:48:16,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 14:48:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 762 transitions.
[2020-09-24 14:48:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2020-09-24 14:48:16,511 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:16,512 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:16,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 14:48:16,512 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:16,513 INFO L82 PathProgramCache]: Analyzing trace with hash 892799758, now seen corresponding path program 1 times
[2020-09-24 14:48:16,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:16,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498542690]
[2020-09-24 14:48:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:16,917 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:48:16,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:48:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:16,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:48:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:48:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:16,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:48:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:16,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:48:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 14:48:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 14:48:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 14:48:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 14:48:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-09-24 14:48:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2020-09-24 14:48:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220
[2020-09-24 14:48:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226
[2020-09-24 14:48:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237
[2020-09-24 14:48:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247
[2020-09-24 14:48:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-09-24 14:48:17,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498542690]
[2020-09-24 14:48:17,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 14:48:17,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-24 14:48:17,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410565444]
[2020-09-24 14:48:17,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 14:48:17,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:48:17,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 14:48:17,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182
[2020-09-24 14:48:17,268 INFO L87 Difference]: Start difference. First operand 689 states and 762 transitions. Second operand 14 states.
[2020-09-24 14:48:17,816 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:18,664 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:19,317 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:19,641 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 14:48:20,003 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 14:48:20,362 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:20,689 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:21,053 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 14:48:21,344 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:21,674 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2020-09-24 14:48:21,962 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:22,292 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:22,635 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:22,960 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:25,119 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:25,439 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:25,757 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194
[2020-09-24 14:48:26,048 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:26,346 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:26,647 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:27,302 INFO L93 Difference]: Finished difference Result 1379 states and 1619 transitions.
[2020-09-24 14:48:27,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states.
[2020-09-24 14:48:27,303 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 259
[2020-09-24 14:48:27,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:27,309 INFO L225 Difference]: With dead ends: 1379
[2020-09-24 14:48:27,309 INFO L226 Difference]: Without dead ends: 800
[2020-09-24 14:48:27,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=320, Invalid=1402, Unknown=0, NotChecked=0, Total=1722
[2020-09-24 14:48:27,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states.
[2020-09-24 14:48:27,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 685.
[2020-09-24 14:48:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states.
[2020-09-24 14:48:27,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 758 transitions.
[2020-09-24 14:48:27,392 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 758 transitions. Word has length 259
[2020-09-24 14:48:27,392 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:27,393 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 758 transitions.
[2020-09-24 14:48:27,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 14:48:27,393 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 758 transitions.
[2020-09-24 14:48:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2020-09-24 14:48:27,398 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:27,399 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:27,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-24 14:48:27,399 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:27,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1117850901, now seen corresponding path program 1 times
[2020-09-24 14:48:27,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:27,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445516734]
[2020-09-24 14:48:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,785 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:48:27,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:48:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:48:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:48:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:48:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:48:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2020-09-24 14:48:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 14:48:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 14:48:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 14:48:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-09-24 14:48:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2020-09-24 14:48:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220
[2020-09-24 14:48:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226
[2020-09-24 14:48:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:27,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237
[2020-09-24 14:48:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:28,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247
[2020-09-24 14:48:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-09-24 14:48:28,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445516734]
[2020-09-24 14:48:28,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 14:48:28,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 14:48:28,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448737280]
[2020-09-24 14:48:28,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 14:48:28,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:48:28,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 14:48:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2020-09-24 14:48:28,077 INFO L87 Difference]: Start difference. First operand 685 states and 758 transitions. Second operand 13 states.
[2020-09-24 14:48:28,567 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:29,343 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:30,439 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:30,743 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:31,088 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:31,436 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:31,766 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:32,093 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 14:48:32,388 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:32,714 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:33,064 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:33,388 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:34,493 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 14:48:34,800 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:36,308 INFO L93 Difference]: Finished difference Result 1493 states and 1767 transitions.
[2020-09-24 14:48:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states.
[2020-09-24 14:48:36,309 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 259
[2020-09-24 14:48:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:36,315 INFO L225 Difference]: With dead ends: 1493
[2020-09-24 14:48:36,316 INFO L226 Difference]: Without dead ends: 1086
[2020-09-24 14:48:36,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260
[2020-09-24 14:48:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states.
[2020-09-24 14:48:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 884.
[2020-09-24 14:48:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states.
[2020-09-24 14:48:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 987 transitions.
[2020-09-24 14:48:36,439 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 987 transitions. Word has length 259
[2020-09-24 14:48:36,441 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:36,441 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 987 transitions.
[2020-09-24 14:48:36,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 14:48:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 987 transitions.
[2020-09-24 14:48:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-09-24 14:48:36,451 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:36,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:36,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-24 14:48:36,452 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:36,453 INFO L82 PathProgramCache]: Analyzing trace with hash 517849007, now seen corresponding path program 1 times
[2020-09-24 14:48:36,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:36,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225813813]
[2020-09-24 14:48:36,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,801 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 14:48:36,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 14:48:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 14:48:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 14:48:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 14:48:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 14:48:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2020-09-24 14:48:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 14:48:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-09-24 14:48:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-09-24 14:48:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2020-09-24 14:48:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2020-09-24 14:48:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:36,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215
[2020-09-24 14:48:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221
[2020-09-24 14:48:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 14:48:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232
[2020-09-24 14:48:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242
[2020-09-24 14:48:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 14:48:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-09-24 14:48:37,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225813813]
[2020-09-24 14:48:37,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 14:48:37,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-24 14:48:37,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248124075]
[2020-09-24 14:48:37,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 14:48:37,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 14:48:37,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 14:48:37,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182
[2020-09-24 14:48:37,103 INFO L87 Difference]: Start difference. First operand 884 states and 987 transitions. Second operand 14 states.
[2020-09-24 14:48:37,816 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 14:48:38,121 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 14:48:38,438 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:38,750 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:39,042 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:39,945 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:40,248 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:40,582 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:40,912 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189
[2020-09-24 14:48:41,214 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 14:48:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 14:48:42,611 INFO L93 Difference]: Finished difference Result 1491 states and 1714 transitions.
[2020-09-24 14:48:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-09-24 14:48:42,612 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 254
[2020-09-24 14:48:42,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 14:48:42,617 INFO L225 Difference]: With dead ends: 1491
[2020-09-24 14:48:42,617 INFO L226 Difference]: Without dead ends: 717
[2020-09-24 14:48:42,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552
[2020-09-24 14:48:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states.
[2020-09-24 14:48:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 675.
[2020-09-24 14:48:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states.
[2020-09-24 14:48:42,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 756 transitions.
[2020-09-24 14:48:42,706 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 756 transitions. Word has length 254
[2020-09-24 14:48:42,707 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 14:48:42,707 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 756 transitions.
[2020-09-24 14:48:42,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 14:48:42,707 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 756 transitions.
[2020-09-24 14:48:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307
[2020-09-24 14:48:42,710 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 14:48:42,711 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 14:48:42,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-24 14:48:42,711 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 14:48:42,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 14:48:42,712 INFO L82 PathProgramCache]: Analyzing trace with hash 685258019, now seen corresponding path program 2 times
[2020-09-24 14:48:42,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 14:48:42,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509262572]
[2020-09-24 14:48:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 14:48:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 14:48:42,835 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 14:48:42,835 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 14:48:42,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-09-24 14:48:42,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 02:48:42 BoogieIcfgContainer
[2020-09-24 14:48:42,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 14:48:42,895 INFO L168 Benchmark]: Toolchain (without parser) took 52057.21 ms. Allocated memory was 140.5 MB in the beginning and 748.7 MB in the end (delta: 608.2 MB). Free memory was 102.7 MB in the beginning and 202.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 508.7 MB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,895 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.74 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 174.4 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,900 INFO L168 Benchmark]: Boogie Preprocessor took 97.79 ms. Allocated memory is still 204.5 MB. Free memory was 174.4 MB in the beginning and 170.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,901 INFO L168 Benchmark]: RCFGBuilder took 1289.31 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 170.2 MB in the beginning and 181.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,907 INFO L168 Benchmark]: TraceAbstraction took 49921.08 ms. Allocated memory was 238.0 MB in the beginning and 748.7 MB in the end (delta: 510.7 MB). Free memory was 179.6 MB in the beginning and 202.1 MB in the end (delta: -22.6 MB). Peak memory consumption was 488.1 MB. Max. memory is 7.1 GB.
[2020-09-24 14:48:42,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 736.74 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.0 MB in the beginning and 174.4 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 97.79 ms. Allocated memory is still 204.5 MB. Free memory was 174.4 MB in the beginning and 170.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1289.31 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 170.2 MB in the beginning and 181.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 49921.08 ms. Allocated memory was 238.0 MB in the beginning and 748.7 MB in the end (delta: 510.7 MB). Free memory was 179.6 MB in the beginning and 202.1 MB in the end (delta: -22.6 MB). Peak memory consumption was 488.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 211]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L47] int waterLevel = 1;
[L48] int methaneLevelCritical = 0;
[L385] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L652] int pumpRunning = 0;
[L653] int systemActive = 1;
[L822] int cleanupTimeShifts = 4;
[L895] int retValue_acc ;
[L896] int tmp ;
[L900] FCALL select_helpers()
[L901] FCALL select_features()
[L902] CALL, EXPR valid_product()
[L198] int retValue_acc ;
[L201] retValue_acc = 1
[L202] return (retValue_acc);
[L902] RET, EXPR valid_product()
[L902] tmp = valid_product()
[L904] COND TRUE \read(tmp)
[L906] FCALL setup()
[L907] CALL runTest()
[L889] CALL test()
[L585] int splverifierCounter ;
[L586] int tmp ;
[L587] int tmp___0 ;
[L588] int tmp___1 ;
[L589] int tmp___2 ;
[L592] splverifierCounter = 0
[L594] COND TRUE 1
[L596] COND TRUE splverifierCounter < 4
[L602] tmp = __VERIFIER_nondet_int()
[L604] COND TRUE \read(tmp)
[L606] CALL waterRise()
[L65] COND TRUE waterLevel < 2
[L66] waterLevel = waterLevel + 1
[L606] RET waterRise()
[L612] tmp___0 = __VERIFIER_nondet_int()
[L614] COND FALSE !(\read(tmp___0))
[L622] tmp___2 = __VERIFIER_nondet_int()
[L624] COND TRUE \read(tmp___2)
[L637] CALL timeShift()
[L659] COND FALSE !(\read(pumpRunning))
[L666] COND TRUE \read(systemActive)
[L668] CALL processEnvironment()
[L688] int tmp ;
[L691] COND TRUE ! pumpRunning
[L693] CALL, EXPR isHighWaterLevel()
[L803] int retValue_acc ;
[L804] int tmp ;
[L805] int tmp___0 ;
[L809] CALL, EXPR isHighWaterSensorDry()
[L127] int retValue_acc ;
[L130] COND FALSE !(waterLevel < 2)
[L134] retValue_acc = 0
[L135] return (retValue_acc);
[L809] RET, EXPR isHighWaterSensorDry()
[L809] tmp = isHighWaterSensorDry()
[L811] COND FALSE !(\read(tmp))
[L814] tmp___0 = 1
[L816] retValue_acc = tmp___0
[L817] return (retValue_acc);
[L693] RET, EXPR isHighWaterLevel()
[L693] tmp = isHighWaterLevel()
[L695] COND TRUE \read(tmp)
[L697] CALL activatePump()
[L722] int tmp ;
[L726] CALL, EXPR isMethaneAlarm()
[L747] int retValue_acc ;
[L751] CALL, EXPR isMethaneLevelCritical()
[L86] int retValue_acc ;
[L89] retValue_acc = methaneLevelCritical
[L90] return (retValue_acc);
[L751] RET, EXPR isMethaneLevelCritical()
[L751] retValue_acc = isMethaneLevelCritical()
[L753] return (retValue_acc);
[L726] RET, EXPR isMethaneAlarm()
[L726] tmp = isMethaneAlarm()
[L728] COND FALSE !(\read(tmp))
[L732] CALL activatePump__wrappee__highWaterSensor()
[L716] pumpRunning = 1
[L732] RET activatePump__wrappee__highWaterSensor()
[L697] RET activatePump()
[L668] RET processEnvironment()
[L674] CALL __utac_acc__Specification4_spec__1()
[L144] int tmp ;
[L145] int tmp___0 ;
[L149] CALL, EXPR getWaterLevel()
[L118] int retValue_acc ;
[L121] retValue_acc = waterLevel
[L122] return (retValue_acc);
[L149] RET, EXPR getWaterLevel()
[L149] tmp = getWaterLevel()
[L151] COND FALSE !(tmp == 0)
[L674] RET __utac_acc__Specification4_spec__1()
[L637] RET timeShift()
[L594] COND TRUE 1
[L596] COND TRUE splverifierCounter < 4
[L602] tmp = __VERIFIER_nondet_int()
[L604] COND FALSE !(\read(tmp))
[L612] tmp___0 = __VERIFIER_nondet_int()
[L614] COND FALSE !(\read(tmp___0))
[L622] tmp___2 = __VERIFIER_nondet_int()
[L624] COND TRUE \read(tmp___2)
[L637] CALL timeShift()
[L659] COND TRUE \read(pumpRunning)
[L661] CALL lowerWaterLevel()
[L53] COND TRUE waterLevel > 0
[L54] waterLevel = waterLevel - 1
[L661] RET lowerWaterLevel()
[L666] COND TRUE \read(systemActive)
[L668] CALL processEnvironment()
[L688] int tmp ;
[L691] COND FALSE !(! pumpRunning)
[L706] FCALL processEnvironment__wrappee__base()
[L668] RET processEnvironment()
[L674] CALL __utac_acc__Specification4_spec__1()
[L144] int tmp ;
[L145] int tmp___0 ;
[L149] CALL, EXPR getWaterLevel()
[L118] int retValue_acc ;
[L121] retValue_acc = waterLevel
[L122] return (retValue_acc);
[L149] RET, EXPR getWaterLevel()
[L149] tmp = getWaterLevel()
[L151] COND FALSE !(tmp == 0)
[L674] RET __utac_acc__Specification4_spec__1()
[L637] RET timeShift()
[L594] COND TRUE 1
[L596] COND TRUE splverifierCounter < 4
[L602] tmp = __VERIFIER_nondet_int()
[L604] COND FALSE !(\read(tmp))
[L612] tmp___0 = __VERIFIER_nondet_int()
[L614] COND FALSE !(\read(tmp___0))
[L622] tmp___2 = __VERIFIER_nondet_int()
[L624] COND TRUE \read(tmp___2)
[L637] CALL timeShift()
[L659] COND TRUE \read(pumpRunning)
[L661] CALL lowerWaterLevel()
[L53] COND TRUE waterLevel > 0
[L54] waterLevel = waterLevel - 1
[L661] RET lowerWaterLevel()
[L666] COND TRUE \read(systemActive)
[L668] CALL processEnvironment()
[L688] int tmp ;
[L691] COND FALSE !(! pumpRunning)
[L706] FCALL processEnvironment__wrappee__base()
[L668] RET processEnvironment()
[L674] CALL __utac_acc__Specification4_spec__1()
[L144] int tmp ;
[L145] int tmp___0 ;
[L149] CALL, EXPR getWaterLevel()
[L118] int retValue_acc ;
[L121] retValue_acc = waterLevel
[L122] return (retValue_acc);
[L149] RET, EXPR getWaterLevel()
[L149] tmp = getWaterLevel()
[L151] COND TRUE tmp == 0
[L153] CALL, EXPR isPumpRunning()
[L758] int retValue_acc ;
[L761] retValue_acc = pumpRunning
[L762] return (retValue_acc);
[L153] RET, EXPR isPumpRunning()
[L153] tmp___0 = isPumpRunning()
[L155] COND TRUE \read(tmp___0)
[L157] CALL __automaton_fail()
[L211] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 49.7s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 43.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1981 SDtfs, 3692 SDslu, 4751 SDs, 0 SdLazy, 9940 SolverSat, 1112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 240 SyntacticMatches, 7 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 23.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=884occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 624 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 1859 NumberOfCodeBlocks, 1859 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1545 ConstructedInterpolants, 0 QuantifiedInterpolants, 748998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 97/105 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...