/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.25-5644d1e-m
[2020-08-19 03:45:28,509 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-08-19 03:45:28,511 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-19 03:45:28,552 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-19 03:45:28,553 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-19 03:45:28,561 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-19 03:45:28,564 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-19 03:45:28,567 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-19 03:45:28,569 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-19 03:45:28,572 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-19 03:45:28,573 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2020-08-19 03:45:28,574 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-19 03:45:28,577 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-19 03:45:28,579 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-19 03:45:28,581 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-19 03:45:28,582 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-19 03:45:28,583 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-19 03:45:28,584 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-19 03:45:28,592 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-19 03:45:28,594 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-19 03:45:28,595 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-19 03:45:28,596 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-08-19 03:45:28,597 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-19 03:45:28,608 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-19 03:45:28,609 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-19 03:45:28,609 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-19 03:45:28,615 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-19 03:45:28,616 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-19 03:45:28,617 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-19 03:45:28,620 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-19 03:45:28,621 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-19 03:45:28,621 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-19 03:45:28,625 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-19 03:45:28,625 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-19 03:45:28,626 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-19 03:45:28,626 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-19 03:45:28,627 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-19 03:45:28,627 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-08-19 03:45:28,629 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-08-19 03:45:28,629 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
[2020-08-19 03:45:28,666 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-08-19 03:45:28,666 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-19 03:45:28,668 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-19 03:45:28,669 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-08-19 03:45:28,669 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-08-19 03:45:28,669 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-19 03:45:28,669 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-08-19 03:45:28,670 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-08-19 03:45:28,670 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-08-19 03:45:28,670 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-08-19 03:45:28,671 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-08-19 03:45:28,671 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-19 03:45:28,671 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-08-19 03:45:28,672 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-08-19 03:45:28,672 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-08-19 03:45:28,672 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-08-19 03:45:28,672 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-08-19 03:45:28,673 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-19 03:45:28,673 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-08-19 03:45:28,673 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-08-19 03:45:28,673 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-08-19 03:45:28,673 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-19 03:45:28,674 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-19 03:45:28,674 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-08-19 03:45:28,674 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-19 03:45:28,674 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-08-19 03:45:28,674 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-19 03:45:28,674 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-19 03:45:28,675 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-08-19 03:45:28,675 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.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;
[2020-08-19 03:45:28,968 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-19 03:45:28,981 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-19 03:45:28,984 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-19 03:45:28,986 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-08-19 03:45:28,987 INFO  L275        PluginConnector]: CDTParser initialized
[2020-08-19 03:45:28,987 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c
[2020-08-19 03:45:29,063 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e07a88a64/ae9fa71fed6f433c836cb5675916ee6a/FLAG2323321a5
[2020-08-19 03:45:29,761 INFO  L306              CDTParser]: Found 1 translation units.
[2020-08-19 03:45:29,763 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c
[2020-08-19 03:45:29,801 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e07a88a64/ae9fa71fed6f433c836cb5675916ee6a/FLAG2323321a5
[2020-08-19 03:45:29,883 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e07a88a64/ae9fa71fed6f433c836cb5675916ee6a
[2020-08-19 03:45:29,894 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-19 03:45:29,896 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-19 03:45:29,899 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-19 03:45:29,900 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-19 03:45:29,904 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-19 03:45:29,905 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:45:29" (1/1) ...
[2020-08-19 03:45:29,910 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b622d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:29, skipping insertion in model container
[2020-08-19 03:45:29,911 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:45:29" (1/1) ...
[2020-08-19 03:45:29,920 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-08-19 03:45:30,137 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-08-19 03:45:31,839 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-19 03:45:31,861 INFO  L203         MainTranslator]: Completed pre-run
[2020-08-19 03:45:33,410 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-08-19 03:45:33,449 INFO  L208         MainTranslator]: Completed translation
[2020-08-19 03:45:33,451 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33 WrapperNode
[2020-08-19 03:45:33,451 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-19 03:45:33,452 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-19 03:45:33,452 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-19 03:45:33,452 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-08-19 03:45:33,469 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,471 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,531 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,532 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,609 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,650 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,672 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (1/1) ...
[2020-08-19 03:45:33,706 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-19 03:45:33,707 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-19 03:45:33,708 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-08-19 03:45:33,708 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-08-19 03:45:33,709 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (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
[2020-08-19 03:45:33,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-19 03:45:33,813 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-19 03:45:33,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-08-19 03:45:33,814 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-08-19 03:45:33,815 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-19 03:45:33,815 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2020-08-19 03:45:33,815 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-08-19 03:45:33,816 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2020-08-19 03:45:33,816 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-08-19 03:45:33,817 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-08-19 03:45:33,817 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2020-08-19 03:45:33,818 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2020-08-19 03:45:33,818 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2020-08-19 03:45:33,818 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2020-08-19 03:45:33,818 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2020-08-19 03:45:33,820 INFO  L130     BoogieDeclarations]: Found specification of procedure node4
[2020-08-19 03:45:33,820 INFO  L130     BoogieDeclarations]: Found specification of procedure node5
[2020-08-19 03:45:33,820 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2020-08-19 03:45:33,820 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2020-08-19 03:45:33,821 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-08-19 03:45:33,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-19 03:45:33,822 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-19 03:45:38,449 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-19 03:45:38,450 INFO  L295             CfgBuilder]: Removed 0 assume(true) statements.
[2020-08-19 03:45:38,462 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:45:38 BoogieIcfgContainer
[2020-08-19 03:45:38,462 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-19 03:45:38,464 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-19 03:45:38,464 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-08-19 03:45:38,468 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-08-19 03:45:38,468 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:45:29" (1/3) ...
[2020-08-19 03:45:38,469 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3449b4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:45:38, skipping insertion in model container
[2020-08-19 03:45:38,469 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:45:33" (2/3) ...
[2020-08-19 03:45:38,470 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3449b4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:45:38, skipping insertion in model container
[2020-08-19 03:45:38,470 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:45:38" (3/3) ...
[2020-08-19 03:45:38,471 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c
[2020-08-19 03:45:38,485 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-19 03:45:38,494 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-08-19 03:45:38,510 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2020-08-19 03:45:38,539 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-08-19 03:45:38,539 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-08-19 03:45:38,539 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-19 03:45:38,540 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-19 03:45:38,540 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-19 03:45:38,540 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-08-19 03:45:38,540 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-19 03:45:38,540 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-19 03:45:38,578 INFO  L276                IsEmpty]: Start isEmpty. Operand 1484 states.
[2020-08-19 03:45:38,617 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 485
[2020-08-19 03:45:38,618 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 03:45:38,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 03:45:38,620 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 03:45:38,626 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 03:45:38,627 INFO  L82        PathProgramCache]: Analyzing trace with hash -1064488228, now seen corresponding path program 1 times
[2020-08-19 03:45:38,636 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 03:45:38,636 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515362592]
[2020-08-19 03:45:38,637 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 03:45:40,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:45:42,443 WARN  L193               SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 406
[2020-08-19 03:45:42,447 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 03:45:42,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:45:42,833 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 03:45:42,834 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515362592]
[2020-08-19 03:45:42,836 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 03:45:42,837 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-08-19 03:45:42,838 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235003040]
[2020-08-19 03:45:42,845 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-08-19 03:45:42,845 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 03:45:42,860 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-08-19 03:45:42,861 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-08-19 03:45:42,863 INFO  L87              Difference]: Start difference. First operand 1484 states. Second operand 5 states.
[2020-08-19 03:46:00,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 03:46:00,014 INFO  L93              Difference]: Finished difference Result 4394 states and 7936 transitions.
[2020-08-19 03:46:00,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-08-19 03:46:00,017 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 484
[2020-08-19 03:46:00,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 03:46:00,066 INFO  L225             Difference]: With dead ends: 4394
[2020-08-19 03:46:00,066 INFO  L226             Difference]: Without dead ends: 2919
[2020-08-19 03:46:00,078 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-08-19 03:46:00,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2919 states.
[2020-08-19 03:46:00,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2865.
[2020-08-19 03:46:00,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2865 states.
[2020-08-19 03:46:00,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 4721 transitions.
[2020-08-19 03:46:00,321 INFO  L78                 Accepts]: Start accepts. Automaton has 2865 states and 4721 transitions. Word has length 484
[2020-08-19 03:46:00,323 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 03:46:00,323 INFO  L479      AbstractCegarLoop]: Abstraction has 2865 states and 4721 transitions.
[2020-08-19 03:46:00,323 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-08-19 03:46:00,323 INFO  L276                IsEmpty]: Start isEmpty. Operand 2865 states and 4721 transitions.
[2020-08-19 03:46:00,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2020-08-19 03:46:00,337 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 03:46:00,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 03:46:00,339 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-19 03:46:00,339 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 03:46:00,339 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 03:46:00,340 INFO  L82        PathProgramCache]: Analyzing trace with hash 1721765960, now seen corresponding path program 1 times
[2020-08-19 03:46:00,340 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 03:46:00,341 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544486975]
[2020-08-19 03:46:00,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 03:46:00,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:46:02,061 WARN  L193               SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 406
[2020-08-19 03:46:02,065 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 03:46:02,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:46:02,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 03:46:02,475 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544486975]
[2020-08-19 03:46:02,475 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 03:46:02,476 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-19 03:46:02,476 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626035013]
[2020-08-19 03:46:02,478 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-19 03:46:02,478 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 03:46:02,479 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-19 03:46:02,479 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-19 03:46:02,479 INFO  L87              Difference]: Start difference. First operand 2865 states and 4721 transitions. Second operand 4 states.
[2020-08-19 03:46:22,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 03:46:22,159 INFO  L93              Difference]: Finished difference Result 8316 states and 13666 transitions.
[2020-08-19 03:46:22,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-08-19 03:46:22,160 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 486
[2020-08-19 03:46:22,162 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 03:46:22,191 INFO  L225             Difference]: With dead ends: 8316
[2020-08-19 03:46:22,192 INFO  L226             Difference]: Without dead ends: 5665
[2020-08-19 03:46:22,198 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-19 03:46:22,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5665 states.
[2020-08-19 03:46:22,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5665 to 5613.
[2020-08-19 03:46:22,387 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5613 states.
[2020-08-19 03:46:22,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5613 states to 5613 states and 9225 transitions.
[2020-08-19 03:46:22,408 INFO  L78                 Accepts]: Start accepts. Automaton has 5613 states and 9225 transitions. Word has length 486
[2020-08-19 03:46:22,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-08-19 03:46:22,410 INFO  L479      AbstractCegarLoop]: Abstraction has 5613 states and 9225 transitions.
[2020-08-19 03:46:22,411 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-19 03:46:22,411 INFO  L276                IsEmpty]: Start isEmpty. Operand 5613 states and 9225 transitions.
[2020-08-19 03:46:22,438 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 488
[2020-08-19 03:46:22,438 INFO  L414         BasicCegarLoop]: Found error trace
[2020-08-19 03:46:22,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 03:46:22,444 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-19 03:46:22,444 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 03:46:22,445 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 03:46:22,445 INFO  L82        PathProgramCache]: Analyzing trace with hash 326918239, now seen corresponding path program 1 times
[2020-08-19 03:46:22,446 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 03:46:22,447 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964894318]
[2020-08-19 03:46:22,448 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 03:46:22,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:46:23,462 WARN  L193               SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 406
[2020-08-19 03:46:23,464 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 03:46:23,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 03:46:23,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 03:46:23,675 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964894318]
[2020-08-19 03:46:23,675 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 03:46:23,675 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-19 03:46:23,676 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071153543]
[2020-08-19 03:46:23,676 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-19 03:46:23,677 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 03:46:23,677 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-19 03:46:23,677 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-19 03:46:23,678 INFO  L87              Difference]: Start difference. First operand 5613 states and 9225 transitions. Second operand 4 states.