/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-24 16:53:07,487 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 16:53:07,491 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 16:53:07,533 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 16:53:07,535 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 16:53:07,543 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 16:53:07,545 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 16:53:07,549 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 16:53:07,552 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 16:53:07,554 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 16:53:07,555 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 16:53:07,557 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 16:53:07,557 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 16:53:07,560 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 16:53:07,562 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 16:53:07,564 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 16:53:07,565 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 16:53:07,566 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 16:53:07,568 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 16:53:07,577 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 16:53:07,580 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 16:53:07,581 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 16:53:07,582 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 16:53:07,583 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 16:53:07,595 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 16:53:07,595 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 16:53:07,595 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 16:53:07,596 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 16:53:07,604 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 16:53:07,605 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 16:53:07,605 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 16:53:07,606 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 16:53:07,610 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 16:53:07,611 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 16:53:07,612 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 16:53:07,612 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 16:53:07,613 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 16:53:07,614 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 16:53:07,614 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 16:53:07,615 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 16:53:07,616 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 16:53:07,618 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 16:53:07,652 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 16:53:07,652 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 16:53:07,653 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 16:53:07,654 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 16:53:07,654 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 16:53:07,654 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 16:53:07,654 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 16:53:07,654 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 16:53:07,655 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 16:53:07,655 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 16:53:07,655 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 16:53:07,655 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 16:53:07,655 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 16:53:07,656 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 16:53:07,656 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 16:53:07,656 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 16:53:07,656 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 16:53:07,656 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 16:53:07,657 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 16:53:07,657 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 16:53:07,657 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 16:53:07,657 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 16:53:07,657 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 16:53:07,658 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 16:53:07,658 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 16:53:07,658 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 16:53:07,658 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 16:53:07,658 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 16:53:07,659 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 16:53:07,659 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 16:53:08,082 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 16:53:08,104 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 16:53:08,109 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 16:53:08,110 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 16:53:08,111 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 16:53:08,113 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c
[2020-09-24 16:53:08,202 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8056dd34/236755b170964130bf5d24121c926ecc/FLAG71c800aed
[2020-09-24 16:53:08,819 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 16:53:08,820 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c
[2020-09-24 16:53:08,852 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8056dd34/236755b170964130bf5d24121c926ecc/FLAG71c800aed
[2020-09-24 16:53:09,070 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8056dd34/236755b170964130bf5d24121c926ecc
[2020-09-24 16:53:09,083 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 16:53:09,089 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 16:53:09,090 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 16:53:09,090 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 16:53:09,094 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 16:53:09,095 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,100 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f53a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09, skipping insertion in model container
[2020-09-24 16:53:09,100 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,109 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 16:53:09,156 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 16:53:09,497 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:53:09,514 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 16:53:09,722 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 16:53:09,759 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 16:53:09,759 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09 WrapperNode
[2020-09-24 16:53:09,760 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 16:53:09,760 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 16:53:09,761 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 16:53:09,761 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 16:53:09,774 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,775 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,795 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,795 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,826 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,837 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,843 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (1/1) ...
[2020-09-24 16:53:09,850 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 16:53:09,851 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 16:53:09,851 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 16:53:09,851 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 16:53:09,852 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (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 16:53:09,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 16:53:09,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 16:53:09,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:53:09,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 16:53:09,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 16:53:09,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 16:53:09,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 16:53:09,934 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 16:53:09,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 16:53:09,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 16:53:09,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 16:53:09,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 16:53:09,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 16:53:09,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 16:53:09,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 16:53:09,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 16:53:09,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 16:53:09,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 16:53:09,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 16:53:09,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:53:09,938 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 16:53:09,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 16:53:09,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:53:09,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 16:53:09,941 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 16:53:09,942 INFO  L138     BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 16:53:09,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 16:53:09,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 16:53:09,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 16:53:09,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 16:53:09,943 INFO  L138     BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 16:53:09,944 INFO  L130     BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 16:53:09,945 INFO  L130     BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 16:53:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 16:53:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure test
[2020-09-24 16:53:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 16:53:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 16:53:09,946 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 16:53:09,947 INFO  L130     BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 16:53:09,948 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 16:53:09,949 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 16:53:09,950 INFO  L130     BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 16:53:09,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 16:53:09,952 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 16:53:11,018 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 16:53:11,018 INFO  L295             CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 16:53:11,029 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:11 BoogieIcfgContainer
[2020-09-24 16:53:11,029 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 16:53:11,030 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 16:53:11,030 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 16:53:11,035 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 16:53:11,035 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:53:09" (1/3) ...
[2020-09-24 16:53:11,036 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7ae13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:11, skipping insertion in model container
[2020-09-24 16:53:11,037 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:53:09" (2/3) ...
[2020-09-24 16:53:11,038 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7ae13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:53:11, skipping insertion in model container
[2020-09-24 16:53:11,038 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:53:11" (3/3) ...
[2020-09-24 16:53:11,040 INFO  L109   eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c
[2020-09-24 16:53:11,051 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 16:53:11,065 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 16:53:11,087 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 16:53:11,125 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 16:53:11,126 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 16:53:11,126 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 16:53:11,126 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 16:53:11,126 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 16:53:11,126 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 16:53:11,127 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 16:53:11,127 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 16:53:11,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 275 states.
[2020-09-24 16:53:11,170 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2020-09-24 16:53:11,171 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:53:11,172 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 16:53:11,173 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:53:11,179 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:53:11,179 INFO  L82        PathProgramCache]: Analyzing trace with hash 915241318, now seen corresponding path program 1 times
[2020-09-24 16:53:11,188 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:53:11,188 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980188916]
[2020-09-24 16:53:11,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:53:11,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:11,726 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:11,887 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:13,273 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:14,343 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:20,288 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:25,731 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:25,732 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 16:53:25,732 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:53:25,733 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 14132
[2020-09-24 16:53:25,738 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:25,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 16:53:25,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 16:53:25,738 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 58
[2020-09-24 16:53:25,739 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 16:53:26,264 WARN  L193               SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:53:26,267 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:53:26,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,351 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,666 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,666 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:53:26,667 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 359
[2020-09-24 16:53:26,667 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,667 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:26,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:26,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 16:53:26,668 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:26,743 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:53:26,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,745 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,748 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,748 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:26,749 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,749 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:53:26,749 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,749 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:26,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:26,750 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:26,750 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:26,752 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:53:26,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,754 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,757 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,757 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:26,758 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,758 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:53:26,758 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,758 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:26,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:26,759 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:26,759 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:26,760 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:53:26,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,763 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,769 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,770 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:26,770 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,770 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 16:53:26,770 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:26,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:26,771 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:26,772 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:26,774 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:53:26,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,776 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,779 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,779 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:26,779 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,780 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 16:53:26,780 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,780 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:26,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:26,781 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:26,781 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:26,782 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2020-09-24 16:53:26,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,785 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,787 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,787 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:26,787 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,788 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:26,788 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:26,788 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:26,789 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:26,789 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:26,791 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2020-09-24 16:53:26,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:26,793 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:26,795 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:26,795 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:26,795 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:26,796 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:26,796 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:26,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:26,796 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:26,797 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:26,797 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:26,828 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 16:53:26,829 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980188916]
[2020-09-24 16:53:26,832 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:53:26,832 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 16:53:26,833 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360308433]
[2020-09-24 16:53:26,840 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 16:53:26,841 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:53:26,858 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 16:53:26,859 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 16:53:26,862 INFO  L87              Difference]: Start difference. First operand 275 states. Second operand 5 states.
[2020-09-24 16:53:27,443 WARN  L193               SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:53:28,246 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 16:53:30,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:53:30,212 INFO  L93              Difference]: Finished difference Result 672 states and 845 transitions.
[2020-09-24 16:53:30,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-09-24 16:53:30,216 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 142
[2020-09-24 16:53:30,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:53:30,238 INFO  L225             Difference]: With dead ends: 672
[2020-09-24 16:53:30,239 INFO  L226             Difference]: Without dead ends: 494
[2020-09-24 16:53:30,245 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 16:53:30,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 494 states.
[2020-09-24 16:53:30,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 412.
[2020-09-24 16:53:30,403 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 412 states.
[2020-09-24 16:53:30,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 467 transitions.
[2020-09-24 16:53:30,409 INFO  L78                 Accepts]: Start accepts. Automaton has 412 states and 467 transitions. Word has length 142
[2020-09-24 16:53:30,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:53:30,410 INFO  L479      AbstractCegarLoop]: Abstraction has 412 states and 467 transitions.
[2020-09-24 16:53:30,410 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 16:53:30,410 INFO  L276                IsEmpty]: Start isEmpty. Operand 412 states and 467 transitions.
[2020-09-24 16:53:30,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2020-09-24 16:53:30,416 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:53:30,416 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]
[2020-09-24 16:53:30,417 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 16:53:30,417 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:53:30,417 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:53:30,417 INFO  L82        PathProgramCache]: Analyzing trace with hash 717440272, now seen corresponding path program 1 times
[2020-09-24 16:53:30,418 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:53:30,418 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644602858]
[2020-09-24 16:53:30,418 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:53:30,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:30,511 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:30,690 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:31,560 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:31,695 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:38,877 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,254 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,254 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 16:53:48,254 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 5
[2020-09-24 16:53:48,254 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 17788
[2020-09-24 16:53:48,255 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 16
[2020-09-24 16:53:48,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 78
[2020-09-24 16:53:48,255 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 92
[2020-09-24 16:53:48,256 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 16:53:48,581 WARN  L193               SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 16:53:48,582 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 16:53:48,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,640 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 182
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,794 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,795 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 74
[2020-09-24 16:53:48,795 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,830 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 16:53:48,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,832 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,834 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,834 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:48,834 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,835 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:48,835 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,835 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:48,836 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,837 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 16:53:48,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,839 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,841 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,841 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:48,841 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,841 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:48,841 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,842 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:48,842 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,843 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 16:53:48,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,846 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,850 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,850 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:48,851 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,851 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 16:53:48,851 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,851 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,852 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:48,852 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,853 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 16:53:48,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,855 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,857 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,857 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:48,857 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,858 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:48,858 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,858 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 16:53:48,859 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,892 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2020-09-24 16:53:48,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,898 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,898 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 16:53:48,898 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,899 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 16:53:48,899 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 16:53:48,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,899 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 16:53:48,900 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,901 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 16:53:48,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,902 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,905 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,905 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 16:53:48,905 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,905 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:48,906 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:48,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,906 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:48,906 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,908 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2020-09-24 16:53:48,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,910 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,915 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,915 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:48,916 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,916 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 16:53:48,916 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 16:53:48,916 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 16:53:48,917 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 16:53:48,917 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,948 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-24 16:53:48,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:48,951 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:48,952 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 16:53:48,952 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 16:53:48,952 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 16:53:48,952 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 16:53:48,953 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 16:53:48,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 16:53:48,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 16:53:48,953 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 16:53:48,953 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 16:53:48,987 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 16:53:48,988 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644602858]
[2020-09-24 16:53:48,992 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 16:53:48,993 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 16:53:48,993 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64559258]
[2020-09-24 16:53:48,996 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 16:53:48,996 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 16:53:48,998 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 16:53:48,998 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 16:53:48,998 INFO  L87              Difference]: Start difference. First operand 412 states and 467 transitions. Second operand 9 states.
[2020-09-24 16:53:49,510 WARN  L193               SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 16:53:51,041 WARN  L193               SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188
[2020-09-24 16:53:51,638 WARN  L193               SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190
[2020-09-24 16:53:51,944 WARN  L193               SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 193
[2020-09-24 16:53:52,349 WARN  L193               SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:53:52,729 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:53:53,019 WARN  L193               SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 16:53:53,330 WARN  L193               SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 16:53:54,550 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 16:53:54,550 INFO  L93              Difference]: Finished difference Result 1238 states and 1615 transitions.
[2020-09-24 16:53:54,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2020-09-24 16:53:54,551 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 151
[2020-09-24 16:53:54,552 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 16:53:54,563 INFO  L225             Difference]: With dead ends: 1238
[2020-09-24 16:53:54,563 INFO  L226             Difference]: Without dead ends: 936
[2020-09-24 16:53:54,566 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2020-09-24 16:53:54,568 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 936 states.
[2020-09-24 16:53:54,703 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 705.
[2020-09-24 16:53:54,703 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 705 states.
[2020-09-24 16:53:54,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 833 transitions.
[2020-09-24 16:53:54,709 INFO  L78                 Accepts]: Start accepts. Automaton has 705 states and 833 transitions. Word has length 151
[2020-09-24 16:53:54,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 16:53:54,710 INFO  L479      AbstractCegarLoop]: Abstraction has 705 states and 833 transitions.
[2020-09-24 16:53:54,710 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 16:53:54,710 INFO  L276                IsEmpty]: Start isEmpty. Operand 705 states and 833 transitions.
[2020-09-24 16:53:54,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2020-09-24 16:53:54,715 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 16:53:54,715 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:53:54,715 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 16:53:54,716 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 16:53:54,716 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 16:53:54,716 INFO  L82        PathProgramCache]: Analyzing trace with hash 1933049782, now seen corresponding path program 1 times
[2020-09-24 16:53:54,716 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 16:53:54,717 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570277101]
[2020-09-24 16:53:54,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 16:53:54,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 16:53:54,830 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:54,898 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:55,003 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,423 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 16:53:59,546 FATAL L256   erpolLogProxyWrapper]: Now shrinking...