/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/rfi004_pso.oepc.i


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


This is Ultimate 0.1.25-b09bf87
[2020-10-16 13:29:55,420 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-16 13:29:55,423 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 13:29:55,447 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 13:29:55,447 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 13:29:55,448 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 13:29:55,450 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-10-16 13:29:55,460 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 13:29:55,461 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 13:29:55,463 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 13:29:55,465 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 13:29:55,467 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 13:29:55,468 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 13:29:55,469 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 13:29:55,470 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 13:29:55,474 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 13:29:55,474 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 13:29:55,474 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-10-16 13:29:55,482 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 13:29:55,484 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 13:29:55,485 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf
[2020-10-16 13:29:55,508 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-16 13:29:55,509 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 13:29:55,510 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 13:29:55,510 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-16 13:29:55,510 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-16 13:29:55,510 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 13:29:55,511 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-16 13:29:55,511 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-16 13:29:55,511 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-16 13:29:55,511 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-16 13:29:55,511 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 13:29:55,512 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 13:29:55,512 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 13:29:55,512 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-16 13:29:55,512 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-16 13:29:55,512 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-16 13:29:55,513 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-16 13:29:55,513 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 13:29:55,518 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-16 13:29:55,518 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-16 13:29:55,518 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-16 13:29:55,519 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 13:29:55,519 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 13:29:55,519 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 13:29:55,519 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 13:29:55,519 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-16 13:29:55,520 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 13:29:55,520 INFO  L138        SettingsManager]:  * Override the interpolant automaton setting of the refinement strategy=true
[2020-10-16 13:29:55,520 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 13:29:55,520 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 13:29:55,520 INFO  L138        SettingsManager]:  * Interpolant automaton=MCR
[2020-10-16 13:29:55,818 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 13:29:55,836 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 13:29:55,839 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 13:29:55,841 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-16 13:29:55,841 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-16 13:29:55,842 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi004_pso.oepc.i
[2020-10-16 13:29:55,902 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/488c2a3cd/48422accc13743de8e53295f937ef424/FLAG3533fc7a3
[2020-10-16 13:29:56,404 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-16 13:29:56,404 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/rfi004_pso.oepc.i
[2020-10-16 13:29:56,433 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/488c2a3cd/48422accc13743de8e53295f937ef424/FLAG3533fc7a3
[2020-10-16 13:29:56,740 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/488c2a3cd/48422accc13743de8e53295f937ef424
[2020-10-16 13:29:56,749 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 13:29:56,751 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 13:29:56,752 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 13:29:56,753 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 13:29:56,756 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 13:29:56,757 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:29:56" (1/1) ...
[2020-10-16 13:29:56,760 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c18235f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:56, skipping insertion in model container
[2020-10-16 13:29:56,760 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:29:56" (1/1) ...
[2020-10-16 13:29:56,768 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-16 13:29:56,838 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-16 13:29:57,434 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:29:57,446 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-16 13:29:57,507 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:29:57,586 INFO  L208         MainTranslator]: Completed translation
[2020-10-16 13:29:57,587 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57 WrapperNode
[2020-10-16 13:29:57,587 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 13:29:57,588 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 13:29:57,588 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 13:29:57,588 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 13:29:57,597 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,616 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,647 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 13:29:57,648 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 13:29:57,648 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 13:29:57,648 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 13:29:57,658 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,659 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,663 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,664 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,674 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,678 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,681 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (1/1) ...
[2020-10-16 13:29:57,686 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 13:29:57,687 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 13:29:57,687 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 13:29:57,687 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-16 13:29:57,688 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (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
[2020-10-16 13:29:57,761 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 13:29:57,761 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 13:29:57,762 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 13:29:57,762 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 13:29:57,762 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 13:29:57,762 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 13:29:57,762 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 13:29:57,762 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 13:29:57,763 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 13:29:57,763 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 13:29:57,763 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 13:29:57,765 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-10-16 13:29:59,542 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 13:29:59,542 INFO  L298             CfgBuilder]: Removed 10 assume(true) statements.
[2020-10-16 13:29:59,545 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:29:59 BoogieIcfgContainer
[2020-10-16 13:29:59,545 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 13:29:59,546 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 13:29:59,546 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 13:29:59,550 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-16 13:29:59,550 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:29:56" (1/3) ...
[2020-10-16 13:29:59,551 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc2be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:29:59, skipping insertion in model container
[2020-10-16 13:29:59,551 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:29:57" (2/3) ...
[2020-10-16 13:29:59,552 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc2be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:29:59, skipping insertion in model container
[2020-10-16 13:29:59,552 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:29:59" (3/3) ...
[2020-10-16 13:29:59,554 INFO  L111   eAbstractionObserver]: Analyzing ICFG rfi004_pso.oepc.i
[2020-10-16 13:29:59,566 WARN  L153   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 13:29:59,566 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 13:29:59,574 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-10-16 13:29:59,576 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 13:29:59,633 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,633 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,634 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,634 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,634 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,635 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,635 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,635 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,635 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,635 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,636 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,636 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,636 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,636 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,636 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,637 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,638 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,638 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,638 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,638 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,639 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,640 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,641 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,641 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,641 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,641 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,641 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,643 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,643 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,644 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,644 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,644 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,645 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,645 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,645 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,645 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,645 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,646 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,646 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,646 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,646 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,646 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,647 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,647 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,647 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,647 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,651 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,652 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,652 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,652 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,652 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,652 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,653 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,653 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,653 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,653 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,653 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,654 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,655 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,655 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,655 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,655 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,655 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,656 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,656 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,656 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,656 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,656 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,659 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,659 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,659 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,659 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,659 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,660 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,660 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,660 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,660 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,660 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,661 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,661 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:29:59,662 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 13:29:59,676 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-16 13:29:59,698 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 13:29:59,698 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 13:29:59,698 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 13:29:59,698 INFO  L380      AbstractCegarLoop]: Backedges is MCR
[2020-10-16 13:29:59,698 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 13:29:59,699 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 13:29:59,699 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 13:29:59,699 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 13:29:59,712 INFO  L137   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 13:29:59,713 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 79 transitions, 168 flow
[2020-10-16 13:29:59,716 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 79 transitions, 168 flow
[2020-10-16 13:29:59,718 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 168 flow
[2020-10-16 13:29:59,759 INFO  L129       PetriNetUnfolder]: 2/77 cut-off events.
[2020-10-16 13:29:59,759 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 13:29:59,764 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 84 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. 
[2020-10-16 13:29:59,766 INFO  L117        LiptonReduction]: Number of co-enabled transitions 936
[2020-10-16 13:30:00,446 WARN  L193               SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58
[2020-10-16 13:30:01,122 WARN  L193               SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55
[2020-10-16 13:30:02,032 WARN  L193               SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85
[2020-10-16 13:30:02,130 INFO  L132        LiptonReduction]: Checked pairs total: 2114
[2020-10-16 13:30:02,131 INFO  L134        LiptonReduction]: Total number of compositions: 71
[2020-10-16 13:30:02,137 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow
[2020-10-16 13:30:02,155 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 150 states.
[2020-10-16 13:30:02,158 INFO  L276                IsEmpty]: Start isEmpty. Operand 150 states.
[2020-10-16 13:30:02,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2020-10-16 13:30:02,164 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:02,165 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2020-10-16 13:30:02,166 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:02,175 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:02,175 INFO  L82        PathProgramCache]: Analyzing trace with hash 787969272, now seen corresponding path program 1 times
[2020-10-16 13:30:02,201 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:02,202 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123083512]
[2020-10-16 13:30:02,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:02,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:02,407 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:02,408 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123083512]
[2020-10-16 13:30:02,409 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:02,410 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:30:02,410 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1127274914]
[2020-10-16 13:30:02,411 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:02,414 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:02,427 INFO  L258    McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions.
[2020-10-16 13:30:02,427 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:02,431 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:30:02,432 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:30:02,432 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:02,447 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:30:02,448 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:30:02,450 INFO  L87              Difference]: Start difference. First operand 150 states. Second operand 3 states.
[2020-10-16 13:30:02,497 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:02,497 INFO  L93              Difference]: Finished difference Result 130 states and 302 transitions.
[2020-10-16 13:30:02,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 13:30:02,500 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 5
[2020-10-16 13:30:02,500 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:02,511 INFO  L225             Difference]: With dead ends: 130
[2020-10-16 13:30:02,511 INFO  L226             Difference]: Without dead ends: 106
[2020-10-16 13:30:02,513 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:30:02,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2020-10-16 13:30:02,561 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106.
[2020-10-16 13:30:02,563 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 106 states.
[2020-10-16 13:30:02,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 240 transitions.
[2020-10-16 13:30:02,567 INFO  L78                 Accepts]: Start accepts. Automaton has 106 states and 240 transitions. Word has length 5
[2020-10-16 13:30:02,567 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:02,567 INFO  L481      AbstractCegarLoop]: Abstraction has 106 states and 240 transitions.
[2020-10-16 13:30:02,567 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:30:02,567 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 240 transitions.
[2020-10-16 13:30:02,568 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-10-16 13:30:02,568 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:02,568 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:02,569 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 13:30:02,569 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:02,569 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:02,569 INFO  L82        PathProgramCache]: Analyzing trace with hash 1324291626, now seen corresponding path program 1 times
[2020-10-16 13:30:02,571 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:02,571 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456290794]
[2020-10-16 13:30:02,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:02,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:02,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:02,640 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456290794]
[2020-10-16 13:30:02,640 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:02,641 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:30:02,641 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [983088376]
[2020-10-16 13:30:02,641 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:02,642 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:02,644 INFO  L258    McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions.
[2020-10-16 13:30:02,644 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:02,644 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:30:02,646 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:30:02,646 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:02,646 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:30:02,647 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:30:02,647 INFO  L87              Difference]: Start difference. First operand 106 states and 240 transitions. Second operand 3 states.
[2020-10-16 13:30:02,655 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:02,655 INFO  L93              Difference]: Finished difference Result 98 states and 218 transitions.
[2020-10-16 13:30:02,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 13:30:02,656 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 7
[2020-10-16 13:30:02,656 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:02,657 INFO  L225             Difference]: With dead ends: 98
[2020-10-16 13:30:02,657 INFO  L226             Difference]: Without dead ends: 98
[2020-10-16 13:30:02,658 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:30:02,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2020-10-16 13:30:02,670 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98.
[2020-10-16 13:30:02,671 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 98 states.
[2020-10-16 13:30:02,672 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions.
[2020-10-16 13:30:02,672 INFO  L78                 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 7
[2020-10-16 13:30:02,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:02,673 INFO  L481      AbstractCegarLoop]: Abstraction has 98 states and 218 transitions.
[2020-10-16 13:30:02,673 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:30:02,673 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions.
[2020-10-16 13:30:02,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 13:30:02,674 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:02,674 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:02,675 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 13:30:02,675 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:02,675 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:02,675 INFO  L82        PathProgramCache]: Analyzing trace with hash 1333904370, now seen corresponding path program 1 times
[2020-10-16 13:30:02,676 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:02,677 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119108156]
[2020-10-16 13:30:02,677 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:02,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:02,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:02,766 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119108156]
[2020-10-16 13:30:02,766 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:02,766 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:30:02,767 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1309071269]
[2020-10-16 13:30:02,767 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:02,768 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:02,771 INFO  L258    McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions.
[2020-10-16 13:30:02,771 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:02,771 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:30:02,772 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:30:02,772 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:02,772 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:30:02,772 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:30:02,773 INFO  L87              Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 4 states.
[2020-10-16 13:30:02,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:02,804 INFO  L93              Difference]: Finished difference Result 83 states and 154 transitions.
[2020-10-16 13:30:02,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-16 13:30:02,804 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-10-16 13:30:02,805 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:02,805 INFO  L225             Difference]: With dead ends: 83
[2020-10-16 13:30:02,805 INFO  L226             Difference]: Without dead ends: 59
[2020-10-16 13:30:02,806 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:30:02,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2020-10-16 13:30:02,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2020-10-16 13:30:02,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2020-10-16 13:30:02,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 101 transitions.
[2020-10-16 13:30:02,812 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 101 transitions. Word has length 9
[2020-10-16 13:30:02,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:02,812 INFO  L481      AbstractCegarLoop]: Abstraction has 59 states and 101 transitions.
[2020-10-16 13:30:02,812 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:30:02,812 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 101 transitions.
[2020-10-16 13:30:02,813 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 13:30:02,813 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:02,813 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:02,813 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 13:30:02,814 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:02,814 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:02,814 INFO  L82        PathProgramCache]: Analyzing trace with hash 1006482721, now seen corresponding path program 1 times
[2020-10-16 13:30:02,815 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:02,816 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761758706]
[2020-10-16 13:30:02,816 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:02,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:03,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:03,043 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761758706]
[2020-10-16 13:30:03,044 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:03,044 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 13:30:03,044 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1912716375]
[2020-10-16 13:30:03,044 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:03,049 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:03,059 INFO  L258    McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions.
[2020-10-16 13:30:03,060 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:03,154 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:30:03,155 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 13:30:03,155 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:03,155 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 13:30:03,156 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:30:03,156 INFO  L87              Difference]: Start difference. First operand 59 states and 101 transitions. Second operand 5 states.
[2020-10-16 13:30:03,197 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:03,197 INFO  L93              Difference]: Finished difference Result 46 states and 73 transitions.
[2020-10-16 13:30:03,199 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-16 13:30:03,200 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 12
[2020-10-16 13:30:03,200 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:03,200 INFO  L225             Difference]: With dead ends: 46
[2020-10-16 13:30:03,201 INFO  L226             Difference]: Without dead ends: 37
[2020-10-16 13:30:03,201 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 13:30:03,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-10-16 13:30:03,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2020-10-16 13:30:03,206 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-10-16 13:30:03,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions.
[2020-10-16 13:30:03,207 INFO  L78                 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 12
[2020-10-16 13:30:03,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:03,208 INFO  L481      AbstractCegarLoop]: Abstraction has 37 states and 57 transitions.
[2020-10-16 13:30:03,208 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 13:30:03,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions.
[2020-10-16 13:30:03,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-16 13:30:03,209 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:03,209 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:03,209 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 13:30:03,210 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:03,210 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:03,210 INFO  L82        PathProgramCache]: Analyzing trace with hash -1148044139, now seen corresponding path program 1 times
[2020-10-16 13:30:03,212 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:03,213 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819551981]
[2020-10-16 13:30:03,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:03,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:03,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:03,323 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819551981]
[2020-10-16 13:30:03,324 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:03,324 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:30:03,324 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [144169186]
[2020-10-16 13:30:03,325 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:03,333 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:03,347 INFO  L258    McrAutomatonBuilder]: Finished intersection with 26 states and 35 transitions.
[2020-10-16 13:30:03,347 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:03,480 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:30:03,481 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:30:03,481 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:03,481 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:30:03,482 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:30:03,482 INFO  L87              Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 4 states.
[2020-10-16 13:30:03,496 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:03,497 INFO  L93              Difference]: Finished difference Result 48 states and 71 transitions.
[2020-10-16 13:30:03,497 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 13:30:03,497 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 15
[2020-10-16 13:30:03,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:03,498 INFO  L225             Difference]: With dead ends: 48
[2020-10-16 13:30:03,498 INFO  L226             Difference]: Without dead ends: 22
[2020-10-16 13:30:03,498 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 13:30:03,499 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2020-10-16 13:30:03,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2020-10-16 13:30:03,501 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-10-16 13:30:03,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions.
[2020-10-16 13:30:03,501 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 15
[2020-10-16 13:30:03,501 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:03,502 INFO  L481      AbstractCegarLoop]: Abstraction has 22 states and 27 transitions.
[2020-10-16 13:30:03,502 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:30:03,502 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions.
[2020-10-16 13:30:03,502 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-16 13:30:03,502 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:03,503 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:03,503 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 13:30:03,503 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:03,503 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:03,504 INFO  L82        PathProgramCache]: Analyzing trace with hash 678332075, now seen corresponding path program 2 times
[2020-10-16 13:30:03,505 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:03,505 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157890259]
[2020-10-16 13:30:03,505 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:03,536 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:30:03,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 13:30:03,670 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157890259]
[2020-10-16 13:30:03,670 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:30:03,670 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 13:30:03,671 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1026861687]
[2020-10-16 13:30:03,671 INFO  L200    McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:30:03,674 INFO  L255    McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:30:03,679 INFO  L258    McrAutomatonBuilder]: Finished intersection with 17 states and 17 transitions.
[2020-10-16 13:30:03,679 INFO  L282    McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:30:03,704 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,705 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,716 INFO  L375       QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term
[2020-10-16 13:30:03,716 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,719 INFO  L375       QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 3, 2, 3, 2, 2, 1] term
[2020-10-16 13:30:03,720 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-10-16 13:30:03,721 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-10-16 13:30:03,725 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,726 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,727 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,727 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,738 INFO  L603       QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,753 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,754 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,758 INFO  L603       QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,764 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,770 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,786 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:03,790 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,793 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,798 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts
[2020-10-16 13:30:03,807 INFO  L375       QuantifierPusher]: Applying distributivity to a DISJUNCTION[6, 3, 4, 2, 3, 2, 1] term
[2020-10-16 13:30:03,808 INFO  L603       QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-10-16 13:30:04,161 WARN  L193               SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 31
[2020-10-16 13:30:04,163 INFO  L313    McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1466#(and (or (and (not (= (mod ~y$r_buff0_thd2~0 256) 0)) (not (= (mod ~y$w_buff0_used~0 256) 0))) (= (mod ~y$w_buff1_used~0 256) 0)) (or (and (not (= (mod ~y$r_buff0_thd2~0 256) 0)) (not (= (mod ~y$w_buff0_used~0 256) 0))) (and (or (= ~y$w_buff0_used~0 (* 256 (div ~y$w_buff0_used~0 256))) (< 0 (+ (div ~y$w_buff1_used~0 256) 1))) (= ~y~0 ~y$w_buff0~0))) (= ~y$w_buff0~0 1))]
[2020-10-16 13:30:04,163 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 13:30:04,164 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:30:04,164 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 13:30:04,164 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2020-10-16 13:30:04,164 INFO  L87              Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 6 states.
[2020-10-16 13:30:04,254 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:30:04,254 INFO  L93              Difference]: Finished difference Result 28 states and 33 transitions.
[2020-10-16 13:30:04,255 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-16 13:30:04,255 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-10-16 13:30:04,255 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:30:04,255 INFO  L225             Difference]: With dead ends: 28
[2020-10-16 13:30:04,256 INFO  L226             Difference]: Without dead ends: 18
[2020-10-16 13:30:04,256 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2020-10-16 13:30:04,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2020-10-16 13:30:04,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2020-10-16 13:30:04,258 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2020-10-16 13:30:04,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2020-10-16 13:30:04,258 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15
[2020-10-16 13:30:04,259 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:30:04,259 INFO  L481      AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2020-10-16 13:30:04,259 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 13:30:04,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2020-10-16 13:30:04,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-16 13:30:04,260 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 13:30:04,260 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:30:04,260 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 13:30:04,260 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:30:04,260 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:30:04,261 INFO  L82        PathProgramCache]: Analyzing trace with hash -249521391, now seen corresponding path program 3 times
[2020-10-16 13:30:04,262 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:30:04,262 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044779593]
[2020-10-16 13:30:04,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:30:04,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 13:30:04,327 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 13:30:04,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 13:30:04,371 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 13:30:04,406 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-16 13:30:04,406 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-16 13:30:04,407 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 13:30:04,408 WARN  L264   etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-10-16 13:30:04,420 WARN  L124   codingBacktranslator]: Skipped backtranslation of ATE [780] [780] L3-->L818: Formula: (let ((.cse7 (= (mod ~y$r_buff1_thd0~0_In1828679282 256) 0)) (.cse6 (= (mod ~y$w_buff1_used~0_In1828679282 256) 0)) (.cse9 (= (mod ~y$w_buff0_used~0_In1828679282 256) 0)) (.cse8 (= (mod ~y$r_buff0_thd0~0_In1828679282 256) 0))) (let ((.cse0 (not .cse8)) (.cse1 (not .cse9)) (.cse5 (or .cse8 .cse9)) (.cse3 (not .cse6)) (.cse4 (not .cse7)) (.cse2 (or .cse6 .cse7))) (and (or (and .cse0 .cse1 (= ~y~0_Out1828679282 ~y$w_buff0~0_In1828679282)) (and (or (and (= ~y~0_Out1828679282 ~y~0_In1828679282) .cse2) (and .cse3 .cse4 (= ~y~0_Out1828679282 ~y$w_buff1~0_In1828679282))) .cse5)) (= ~y$r_buff0_thd0~0_In1828679282 ~y$r_buff0_thd0~0_Out1828679282) (or (and (= ~y$w_buff0_used~0_Out1828679282 0) .cse0 .cse1) (and (= ~y$w_buff0_used~0_Out1828679282 ~y$w_buff0_used~0_In1828679282) .cse5)) (= ~y$r_buff1_thd0~0_Out1828679282 ~y$r_buff1_thd0~0_In1828679282) (or (and .cse3 .cse4 (= ~y$w_buff1_used~0_Out1828679282 0)) (and (= ~y$w_buff1_used~0_Out1828679282 ~y$w_buff1_used~0_In1828679282) .cse2)) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out1828679282 0)) (= ULTIMATE.start_assume_abort_if_not_~cond_Out1828679282 |ULTIMATE.start_assume_abort_if_not_#in~cond_In1828679282|))))  InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In1828679282|, ~y$w_buff0_used~0=~y$w_buff0_used~0_In1828679282, ~y$w_buff1~0=~y$w_buff1~0_In1828679282, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In1828679282, ~y$w_buff0~0=~y$w_buff0~0_In1828679282, ~y~0=~y~0_In1828679282, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In1828679282, ~y$w_buff1_used~0=~y$w_buff1_used~0_In1828679282}  OutVars{~y$w_buff0_used~0=~y$w_buff0_used~0_Out1828679282, ULTIMATE.start_main_#t~ite35=|ULTIMATE.start_main_#t~ite35_Out1828679282|, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out1828679282|, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out1828679282|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out1828679282|, ULTIMATE.start_main_#t~ite33=|ULTIMATE.start_main_#t~ite33_Out1828679282|, ULTIMATE.start_main_#t~ite34=|ULTIMATE.start_main_#t~ite34_Out1828679282|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In1828679282|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out1828679282, ~y$w_buff1~0=~y$w_buff1~0_In1828679282, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out1828679282, ~y$w_buff0~0=~y$w_buff0~0_In1828679282, ~y~0=~y~0_Out1828679282, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out1828679282, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out1828679282}  AuxVars[]  AssignedVars[ULTIMATE.start_assume_abort_if_not_~cond, ~y$w_buff0_used~0, ~y$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite35, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~y~0, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite33, ULTIMATE.start_main_#t~ite34, ~y$w_buff1_used~0] because there is no mapped edge
[2020-10-16 13:30:04,426 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,426 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,428 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,428 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,428 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,428 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,429 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,429 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,429 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,429 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,429 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,430 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,430 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,430 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,430 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,430 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,431 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,431 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,431 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,434 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,434 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,434 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,434 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,435 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,435 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,435 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,435 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,435 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,435 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,436 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,437 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,437 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,438 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,438 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,438 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,438 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,440 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,440 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,440 WARN  L219     RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented.
[2020-10-16 13:30:04,441 ERROR L222     RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location
[2020-10-16 13:30:04,529 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:30:04 BasicIcfg
[2020-10-16 13:30:04,529 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 13:30:04,532 INFO  L168              Benchmark]: Toolchain (without parser) took 7779.85 ms. Allocated memory was 138.4 MB in the beginning and 298.8 MB in the end (delta: 160.4 MB). Free memory was 99.6 MB in the beginning and 130.0 MB in the end (delta: -30.4 MB). Peak memory consumption was 130.1 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,533 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,535 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 834.96 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 152.7 MB in the end (delta: -53.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,537 INFO  L168              Benchmark]: Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 200.8 MB. Free memory was 152.7 MB in the beginning and 150.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,537 INFO  L168              Benchmark]: Boogie Preprocessor took 38.31 ms. Allocated memory is still 200.8 MB. Free memory was 150.7 MB in the beginning and 148.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,538 INFO  L168              Benchmark]: RCFGBuilder took 1858.52 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 147.7 MB in the beginning and 81.0 MB in the end (delta: 66.7 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,543 INFO  L168              Benchmark]: TraceAbstraction took 4982.66 ms. Allocated memory was 232.3 MB in the beginning and 298.8 MB in the end (delta: 66.6 MB). Free memory was 81.0 MB in the beginning and 130.0 MB in the end (delta: -49.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB.
[2020-10-16 13:30:04,551 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.0 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 834.96 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 152.7 MB in the end (delta: -53.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 59.79 ms. Allocated memory is still 200.8 MB. Free memory was 152.7 MB in the beginning and 150.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 38.31 ms. Allocated memory is still 200.8 MB. Free memory was 150.7 MB in the beginning and 148.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1858.52 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 147.7 MB in the beginning and 81.0 MB in the end (delta: 66.7 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 4982.66 ms. Allocated memory was 232.3 MB in the beginning and 298.8 MB in the end (delta: 66.6 MB). Free memory was 81.0 MB in the beginning and 130.0 MB in the end (delta: -49.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    506 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.4s, 84 PlacesBefore, 26 PlacesAfterwards, 79 TransitionsBefore, 19 TransitionsAfterwards, 936 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2114 MoverChecksTotal
  - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L698]               0  int __unbuffered_cnt = 0;
[L700]               0  int __unbuffered_p0_EAX = 0;
[L702]               0  int __unbuffered_p1_EAX = 0;
[L704]               0  int __unbuffered_p1_EBX = 0;
[L705]               0  _Bool main$tmp_guard0;
[L706]               0  _Bool main$tmp_guard1;
[L708]               0  int x = 0;
[L710]               0  int y = 0;
[L711]               0  _Bool y$flush_delayed;
[L712]               0  int y$mem_tmp;
[L713]               0  _Bool y$r_buff0_thd0;
[L714]               0  _Bool y$r_buff0_thd1;
[L715]               0  _Bool y$r_buff0_thd2;
[L716]               0  _Bool y$r_buff1_thd0;
[L717]               0  _Bool y$r_buff1_thd1;
[L718]               0  _Bool y$r_buff1_thd2;
[L719]               0  _Bool y$read_delayed;
[L720]               0  int *y$read_delayed_var;
[L721]               0  int y$w_buff0;
[L722]               0  _Bool y$w_buff0_used;
[L723]               0  int y$w_buff1;
[L724]               0  _Bool y$w_buff1_used;
[L726]               0  int z = 0;
[L727]               0  _Bool weak$$choice0;
[L728]               0  _Bool weak$$choice2;
[L804]               0  pthread_t t1653;
[L805]  FCALL, FORK  0  pthread_create(&t1653, ((void *)0), P0, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L806]               0  pthread_t t1654;
[L807]  FCALL, FORK  0  pthread_create(&t1654, ((void *)0), P1, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L762]               2  y$w_buff1 = y$w_buff0
[L763]               2  y$w_buff0 = 1
[L764]               2  y$w_buff1_used = y$w_buff0_used
[L765]               2  y$w_buff0_used = (_Bool)1
[L8]    COND TRUE    2  !expression
[L8]                 2  __VERIFIER_error()
[L767]               2  y$r_buff1_thd0 = y$r_buff0_thd0
[L768]               2  y$r_buff1_thd1 = y$r_buff0_thd1
[L769]               2  y$r_buff1_thd2 = y$r_buff0_thd2
[L770]               2  y$r_buff0_thd2 = (_Bool)1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L773]               2  z = 1
[L776]               2  __unbuffered_p1_EAX = z
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L779]               2  __unbuffered_p1_EBX = x
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L732]               1  x = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L737]               1  weak$$choice0 = __VERIFIER_nondet_bool()
[L738]               1  weak$$choice2 = __VERIFIER_nondet_bool()
[L739]               1  y$flush_delayed = weak$$choice2
[L740]               1  y$mem_tmp = y
[L741]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1)
[L741]               1  y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1)
[L742]  EXPR         1  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0))
[L742]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)
[L742]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0
[L742]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)
[L742]  EXPR         1  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0))
[L742]               1  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0))
[L743]  EXPR         1  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1))
[L743]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)
[L743]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1
[L743]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)
[L743]  EXPR         1  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1))
[L743]               1  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1))
[L744]  EXPR         1  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used))
[L744]               1  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used))
[L745]  EXPR         1  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L745]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)
[L745]  EXPR         1  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L745]               1  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L746]  EXPR         1  weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1))
[L746]               1  y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1))
[L747]  EXPR         1  weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L747]  EXPR         1  !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)
[L747]  EXPR         1  weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L747]               1  y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0))
[L748]               1  __unbuffered_p0_EAX = y
[L749]  EXPR         1  y$flush_delayed ? y$mem_tmp : y
[L749]               1  y = y$flush_delayed ? y$mem_tmp : y
[L750]               1  y$flush_delayed = (_Bool)0
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L782]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L782]               2  y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L783]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L783]               2  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L784]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L784]               2  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L785]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L785]               2  y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L786]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
[L786]               2  y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
[L755]               1  __unbuffered_cnt = __unbuffered_cnt + 1
[L757]               1  return 0;
[L789]               2  __unbuffered_cnt = __unbuffered_cnt + 1
[L791]               2  return 0;
[L809]               0  main$tmp_guard0 = __unbuffered_cnt == 2
[L820]               0  main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0)
[L8]    COND TRUE    0  !expression
[L8]                 0  __VERIFIER_error()
        VAL             [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 102 SDtfs, 67 SDslu, 139 SDs, 0 SdLazy, 71 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 2731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...