/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix036_power.opt.i


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


This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8
[2021-03-11 20:08:26,465 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-03-11 20:08:26,467 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-03-11 20:08:26,504 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-03-11 20:08:26,504 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-03-11 20:08:26,507 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-03-11 20:08:26,510 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-03-11 20:08:26,515 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2021-03-11 20:08:26,521 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2021-03-11 20:08:26,523 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-03-11 20:08:26,523 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-03-11 20:08:26,525 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-03-11 20:08:26,526 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-03-11 20:08:26,527 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-03-11 20:08:26,529 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-03-11 20:08:26,530 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-03-11 20:08:26,532 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-03-11 20:08:26,540 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-03-11 20:08:26,541 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-03-11 20:08:26,542 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-03-11 20:08:26,543 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-03-11 20:08:26,545 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-03-11 20:08:26,550 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-03-11 20:08:26,551 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-03-11 20:08:26,552 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-03-11 20:08:26,552 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-03-11 20:08:26,553 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-03-11 20:08:26,553 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-03-11 20:08:26,554 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-03-11 20:08:26,556 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-03-11 20:08:26,556 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-03-11 20:08:26,570 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-03-11 20:08:26,571 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-03-11 20:08:26,571 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-03-11 20:08:26,572 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-03-11 20:08:26,572 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-03-11 20:08:26,573 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-03-11 20:08:26,573 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-03-11 20:08:26,577 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf
[2021-03-11 20:08:26,611 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-03-11 20:08:26,611 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-03-11 20:08:26,615 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-03-11 20:08:26,615 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-03-11 20:08:26,615 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-03-11 20:08:26,615 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-03-11 20:08:26,615 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-03-11 20:08:26,615 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-03-11 20:08:26,616 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-03-11 20:08:26,616 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-03-11 20:08:26,617 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-03-11 20:08:26,618 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-03-11 20:08:26,618 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-03-11 20:08:26,618 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-03-11 20:08:26,618 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-03-11 20:08:26,618 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-03-11 20:08:26,618 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-03-11 20:08:26,619 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-03-11 20:08:26,619 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-03-11 20:08:26,911 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-03-11 20:08:26,931 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-03-11 20:08:26,934 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-03-11 20:08:26,934 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-03-11 20:08:26,935 INFO  L275        PluginConnector]: CDTParser initialized
[2021-03-11 20:08:26,936 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix036_power.opt.i
[2021-03-11 20:08:26,984 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d867eb11e/0ff69d74b5564cf58a852c65e5a55a39/FLAG40d96c2dd
[2021-03-11 20:08:27,433 INFO  L306              CDTParser]: Found 1 translation units.
[2021-03-11 20:08:27,434 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036_power.opt.i
[2021-03-11 20:08:27,449 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d867eb11e/0ff69d74b5564cf58a852c65e5a55a39/FLAG40d96c2dd
[2021-03-11 20:08:27,460 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d867eb11e/0ff69d74b5564cf58a852c65e5a55a39
[2021-03-11 20:08:27,462 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-03-11 20:08:27,466 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-03-11 20:08:27,467 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-03-11 20:08:27,467 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-03-11 20:08:27,471 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-03-11 20:08:27,471 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:08:27" (1/1) ...
[2021-03-11 20:08:27,472 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c54303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:27, skipping insertion in model container
[2021-03-11 20:08:27,472 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:08:27" (1/1) ...
[2021-03-11 20:08:27,480 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-03-11 20:08:27,520 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-03-11 20:08:27,685 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036_power.opt.i[950,963]
[2021-03-11 20:08:27,850 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-11 20:08:27,860 INFO  L203         MainTranslator]: Completed pre-run
[2021-03-11 20:08:27,871 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036_power.opt.i[950,963]
[2021-03-11 20:08:27,933 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-11 20:08:28,014 INFO  L208         MainTranslator]: Completed translation
[2021-03-11 20:08:28,014 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28 WrapperNode
[2021-03-11 20:08:28,014 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-03-11 20:08:28,016 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-03-11 20:08:28,016 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-03-11 20:08:28,017 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-03-11 20:08:28,023 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,053 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,088 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-03-11 20:08:28,089 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-03-11 20:08:28,089 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-03-11 20:08:28,089 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-03-11 20:08:28,100 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,101 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,114 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,115 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,127 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,130 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,133 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
[2021-03-11 20:08:28,152 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-03-11 20:08:28,153 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-03-11 20:08:28,153 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-03-11 20:08:28,153 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-03-11 20:08:28,154 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-03-11 20:08:28,253 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-03-11 20:08:28,254 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-03-11 20:08:28,254 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-03-11 20:08:28,254 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-03-11 20:08:28,255 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2021-03-11 20:08:28,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2021-03-11 20:08:28,255 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2021-03-11 20:08:28,255 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2021-03-11 20:08:28,256 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2021-03-11 20:08:28,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2021-03-11 20:08:28,256 INFO  L130     BoogieDeclarations]: Found specification of procedure P3
[2021-03-11 20:08:28,256 INFO  L138     BoogieDeclarations]: Found implementation of procedure P3
[2021-03-11 20:08:28,257 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-03-11 20:08:28,257 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-03-11 20:08:28,257 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-03-11 20:08:28,257 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-03-11 20:08:28,258 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-03-11 20:08:29,899 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-03-11 20:08:29,899 INFO  L299             CfgBuilder]: Removed 10 assume(true) statements.
[2021-03-11 20:08:29,901 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:08:29 BoogieIcfgContainer
[2021-03-11 20:08:29,901 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-03-11 20:08:29,902 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-03-11 20:08:29,902 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-03-11 20:08:29,905 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-03-11 20:08:29,905 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:08:27" (1/3) ...
[2021-03-11 20:08:29,906 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5148e11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:08:29, skipping insertion in model container
[2021-03-11 20:08:29,906 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:08:28" (2/3) ...
[2021-03-11 20:08:29,906 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5148e11c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:08:29, skipping insertion in model container
[2021-03-11 20:08:29,906 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:08:29" (3/3) ...
[2021-03-11 20:08:29,907 INFO  L111   eAbstractionObserver]: Analyzing ICFG mix036_power.opt.i
[2021-03-11 20:08:29,912 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-03-11 20:08:29,916 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2021-03-11 20:08:29,917 INFO  L323   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-03-11 20:08:29,949 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,950 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,951 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,952 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,953 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,954 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,955 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,956 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,956 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,958 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,959 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,960 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,961 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,963 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,963 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,964 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,965 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,966 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,967 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,968 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,968 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,968 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,968 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,969 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,970 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,971 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,972 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,973 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,973 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,973 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,973 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,975 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,975 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,975 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,975 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,975 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,976 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,977 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,978 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,980 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,980 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,980 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,980 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,981 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,982 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,982 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,983 WARN  L313   ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-11 20:08:29,984 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-03-11 20:08:30,000 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2021-03-11 20:08:30,017 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-03-11 20:08:30,017 INFO  L377      AbstractCegarLoop]: Hoare is false
[2021-03-11 20:08:30,017 INFO  L378      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-03-11 20:08:30,017 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-03-11 20:08:30,017 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-03-11 20:08:30,017 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-03-11 20:08:30,018 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-03-11 20:08:30,018 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-03-11 20:08:30,027 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 130 places, 119 transitions, 258 flow
[2021-03-11 20:08:30,062 INFO  L129       PetriNetUnfolder]: 2/115 cut-off events.
[2021-03-11 20:08:30,062 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-11 20:08:30,066 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 128 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. 
[2021-03-11 20:08:30,066 INFO  L82        GeneralOperation]: Start removeDead. Operand has 130 places, 119 transitions, 258 flow
[2021-03-11 20:08:30,071 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 126 places, 115 transitions, 242 flow
[2021-03-11 20:08:30,074 INFO  L118   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2021-03-11 20:08:30,081 INFO  L133   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 115 transitions, 242 flow
[2021-03-11 20:08:30,083 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 115 transitions, 242 flow
[2021-03-11 20:08:30,084 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 242 flow
[2021-03-11 20:08:30,102 INFO  L129       PetriNetUnfolder]: 2/115 cut-off events.
[2021-03-11 20:08:30,102 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-11 20:08:30,103 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 128 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. 
[2021-03-11 20:08:30,105 INFO  L116        LiptonReduction]: Number of co-enabled transitions 2610
[2021-03-11 20:08:31,445 WARN  L205               SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58
[2021-03-11 20:08:31,812 WARN  L205               SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81
[2021-03-11 20:08:31,932 WARN  L205               SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-03-11 20:08:32,408 WARN  L205               SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-03-11 20:08:32,550 WARN  L205               SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-03-11 20:08:34,076 WARN  L205               SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56
[2021-03-11 20:08:35,280 WARN  L205               SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128
[2021-03-11 20:08:35,458 WARN  L205               SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 124
[2021-03-11 20:08:35,872 WARN  L205               SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128
[2021-03-11 20:08:36,031 WARN  L205               SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 124
[2021-03-11 20:08:36,046 INFO  L131        LiptonReduction]: Checked pairs total: 6523
[2021-03-11 20:08:36,046 INFO  L133        LiptonReduction]: Total number of compositions: 97
[2021-03-11 20:08:36,047 INFO  L182   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5976
[2021-03-11 20:08:36,065 INFO  L129       PetriNetUnfolder]: 0/13 cut-off events.
[2021-03-11 20:08:36,065 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-11 20:08:36,065 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:36,066 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:36,066 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:36,069 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:36,069 INFO  L82        PathProgramCache]: Analyzing trace with hash 112300261, now seen corresponding path program 1 times
[2021-03-11 20:08:36,076 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:36,076 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789280651]
[2021-03-11 20:08:36,077 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:36,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:36,314 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,316 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-03-11 20:08:36,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:36,325 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789280651]
[2021-03-11 20:08:36,326 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:36,326 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2021-03-11 20:08:36,326 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953987227]
[2021-03-11 20:08:36,333 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-03-11 20:08:36,333 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:36,343 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-03-11 20:08:36,345 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-03-11 20:08:36,346 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 185 out of 216
[2021-03-11 20:08:36,349 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand  has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,349 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:36,349 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 216
[2021-03-11 20:08:36,350 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:36,407 INFO  L129       PetriNetUnfolder]: 29/109 cut-off events.
[2021-03-11 20:08:36,407 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-11 20:08:36,408 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 176 conditions, 109 events. 29/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 412 event pairs, 15 based on Foata normal form. 11/102 useless extension candidates. Maximal degree in co-relation 165. Up to 41 conditions per place. 
[2021-03-11 20:08:36,410 INFO  L132   encePairwiseOnDemand]: 212/216 looper letters, 7 selfloop transitions, 2 changer transitions 0/31 dead transitions.
[2021-03-11 20:08:36,410 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 92 flow
[2021-03-11 20:08:36,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-11 20:08:36,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-03-11 20:08:36,420 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions.
[2021-03-11 20:08:36,422 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.875
[2021-03-11 20:08:36,423 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 567 transitions.
[2021-03-11 20:08:36,423 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 567 transitions.
[2021-03-11 20:08:36,425 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:36,427 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 567 transitions.
[2021-03-11 20:08:36,430 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,436 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,437 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,439 INFO  L185             Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 3 states and 567 transitions.
[2021-03-11 20:08:36,440 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 92 flow
[2021-03-11 20:08:36,441 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places.
[2021-03-11 20:08:36,443 INFO  L241             Difference]: Finished difference. Result has 39 places, 28 transitions, 68 flow
[2021-03-11 20:08:36,444 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=39, PETRI_TRANSITIONS=28}
[2021-03-11 20:08:36,445 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places.
[2021-03-11 20:08:36,445 INFO  L480      AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 68 flow
[2021-03-11 20:08:36,446 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,446 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:36,446 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:36,446 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-03-11 20:08:36,446 INFO  L428      AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:36,446 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:36,447 INFO  L82        PathProgramCache]: Analyzing trace with hash 1302507092, now seen corresponding path program 1 times
[2021-03-11 20:08:36,447 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:36,447 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26172107]
[2021-03-11 20:08:36,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:36,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:36,549 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,550 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:36,554 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,555 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:36,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:36,558 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26172107]
[2021-03-11 20:08:36,559 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:36,560 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-03-11 20:08:36,560 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057142742]
[2021-03-11 20:08:36,563 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-11 20:08:36,563 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:36,570 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-11 20:08:36,571 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-11 20:08:36,572 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 183 out of 216
[2021-03-11 20:08:36,573 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 68 flow. Second operand  has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,573 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:36,573 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 216
[2021-03-11 20:08:36,573 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:36,620 INFO  L129       PetriNetUnfolder]: 1/39 cut-off events.
[2021-03-11 20:08:36,621 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-11 20:08:36,624 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 53. Up to 5 conditions per place. 
[2021-03-11 20:08:36,626 INFO  L132   encePairwiseOnDemand]: 212/216 looper letters, 2 selfloop transitions, 2 changer transitions 5/32 dead transitions.
[2021-03-11 20:08:36,626 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 94 flow
[2021-03-11 20:08:36,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-11 20:08:36,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-03-11 20:08:36,630 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 926 transitions.
[2021-03-11 20:08:36,630 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.8574074074074074
[2021-03-11 20:08:36,630 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 926 transitions.
[2021-03-11 20:08:36,630 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 926 transitions.
[2021-03-11 20:08:36,631 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:36,631 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 926 transitions.
[2021-03-11 20:08:36,633 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 185.2) internal successors, (926), 5 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,636 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,637 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,637 INFO  L185             Difference]: Start difference. First operand has 39 places, 28 transitions, 68 flow. Second operand 5 states and 926 transitions.
[2021-03-11 20:08:36,637 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 94 flow
[2021-03-11 20:08:36,637 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-03-11 20:08:36,638 INFO  L241             Difference]: Finished difference. Result has 44 places, 27 transitions, 74 flow
[2021-03-11 20:08:36,638 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=44, PETRI_TRANSITIONS=27}
[2021-03-11 20:08:36,640 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places.
[2021-03-11 20:08:36,641 INFO  L480      AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 74 flow
[2021-03-11 20:08:36,641 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,641 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:36,642 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:36,643 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-03-11 20:08:36,644 INFO  L428      AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:36,645 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:36,645 INFO  L82        PathProgramCache]: Analyzing trace with hash 1873837417, now seen corresponding path program 1 times
[2021-03-11 20:08:36,646 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:36,647 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343529276]
[2021-03-11 20:08:36,647 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:36,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:36,721 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,722 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:36,725 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,725 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-03-11 20:08:36,731 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,732 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:36,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:36,732 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343529276]
[2021-03-11 20:08:36,733 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:36,733 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-11 20:08:36,733 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673750490]
[2021-03-11 20:08:36,733 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-11 20:08:36,733 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:36,734 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-11 20:08:36,734 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-11 20:08:36,735 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 179 out of 216
[2021-03-11 20:08:36,736 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 74 flow. Second operand  has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,736 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:36,736 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 216
[2021-03-11 20:08:36,736 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:36,789 INFO  L129       PetriNetUnfolder]: 90/200 cut-off events.
[2021-03-11 20:08:36,789 INFO  L130       PetriNetUnfolder]: For 15/15 co-relation queries the response was YES.
[2021-03-11 20:08:36,790 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 414 conditions, 200 events. 90/200 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 935 event pairs, 46 based on Foata normal form. 16/208 useless extension candidates. Maximal degree in co-relation 402. Up to 119 conditions per place. 
[2021-03-11 20:08:36,791 INFO  L132   encePairwiseOnDemand]: 209/216 looper letters, 6 selfloop transitions, 5 changer transitions 9/40 dead transitions.
[2021-03-11 20:08:36,792 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 140 flow
[2021-03-11 20:08:36,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-11 20:08:36,792 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-03-11 20:08:36,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 917 transitions.
[2021-03-11 20:08:36,794 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.8490740740740741
[2021-03-11 20:08:36,794 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 917 transitions.
[2021-03-11 20:08:36,794 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 917 transitions.
[2021-03-11 20:08:36,795 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:36,795 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 917 transitions.
[2021-03-11 20:08:36,797 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 183.4) internal successors, (917), 5 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,799 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,800 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,800 INFO  L185             Difference]: Start difference. First operand has 44 places, 27 transitions, 74 flow. Second operand 5 states and 917 transitions.
[2021-03-11 20:08:36,800 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 140 flow
[2021-03-11 20:08:36,801 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 132 flow, removed 2 selfloop flow, removed 4 redundant places.
[2021-03-11 20:08:36,802 INFO  L241             Difference]: Finished difference. Result has 44 places, 31 transitions, 111 flow
[2021-03-11 20:08:36,802 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=44, PETRI_TRANSITIONS=31}
[2021-03-11 20:08:36,802 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places.
[2021-03-11 20:08:36,802 INFO  L480      AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 111 flow
[2021-03-11 20:08:36,803 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,803 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:36,803 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:36,803 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-03-11 20:08:36,803 INFO  L428      AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:36,804 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:36,804 INFO  L82        PathProgramCache]: Analyzing trace with hash -1865275878, now seen corresponding path program 1 times
[2021-03-11 20:08:36,804 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:36,804 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791945981]
[2021-03-11 20:08:36,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:36,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:36,856 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,857 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:36,859 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,860 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:36,866 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,867 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-03-11 20:08:36,874 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:36,875 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:36,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:36,875 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791945981]
[2021-03-11 20:08:36,876 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:36,876 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-03-11 20:08:36,876 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613050878]
[2021-03-11 20:08:36,876 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-03-11 20:08:36,876 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:36,877 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-03-11 20:08:36,877 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-03-11 20:08:36,878 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 179 out of 216
[2021-03-11 20:08:36,879 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 111 flow. Second operand  has 5 states, 5 states have (on average 179.8) internal successors, (899), 5 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,879 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:36,879 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 216
[2021-03-11 20:08:36,879 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:36,959 INFO  L129       PetriNetUnfolder]: 66/159 cut-off events.
[2021-03-11 20:08:36,959 INFO  L130       PetriNetUnfolder]: For 110/171 co-relation queries the response was YES.
[2021-03-11 20:08:36,962 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 527 conditions, 159 events. 66/159 cut-off events. For 110/171 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 641 event pairs, 14 based on Foata normal form. 24/178 useless extension candidates. Maximal degree in co-relation 514. Up to 108 conditions per place. 
[2021-03-11 20:08:36,964 INFO  L132   encePairwiseOnDemand]: 209/216 looper letters, 6 selfloop transitions, 9 changer transitions 9/44 dead transitions.
[2021-03-11 20:08:36,964 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 235 flow
[2021-03-11 20:08:36,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-03-11 20:08:36,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-03-11 20:08:36,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1100 transitions.
[2021-03-11 20:08:36,967 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.8487654320987654
[2021-03-11 20:08:36,967 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1100 transitions.
[2021-03-11 20:08:36,967 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1100 transitions.
[2021-03-11 20:08:36,968 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:36,968 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1100 transitions.
[2021-03-11 20:08:36,970 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,973 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,974 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,974 INFO  L185             Difference]: Start difference. First operand has 44 places, 31 transitions, 111 flow. Second operand 6 states and 1100 transitions.
[2021-03-11 20:08:36,974 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 235 flow
[2021-03-11 20:08:36,976 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 228 flow, removed 1 selfloop flow, removed 2 redundant places.
[2021-03-11 20:08:36,977 INFO  L241             Difference]: Finished difference. Result has 48 places, 35 transitions, 176 flow
[2021-03-11 20:08:36,977 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=176, PETRI_PLACES=48, PETRI_TRANSITIONS=35}
[2021-03-11 20:08:36,977 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places.
[2021-03-11 20:08:36,977 INFO  L480      AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 176 flow
[2021-03-11 20:08:36,978 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 5 states, 5 states have (on average 179.8) internal successors, (899), 5 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:36,978 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:36,978 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:36,978 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-03-11 20:08:36,979 INFO  L428      AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:36,979 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:36,979 INFO  L82        PathProgramCache]: Analyzing trace with hash -308183217, now seen corresponding path program 1 times
[2021-03-11 20:08:36,979 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:36,980 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885355620]
[2021-03-11 20:08:36,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:37,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:37,120 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,120 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,124 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,125 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,128 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,129 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,134 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,135 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-03-11 20:08:37,169 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,171 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:37,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:37,171 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885355620]
[2021-03-11 20:08:37,172 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:37,172 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-03-11 20:08:37,172 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10562846]
[2021-03-11 20:08:37,173 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-03-11 20:08:37,173 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:37,174 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-03-11 20:08:37,174 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-03-11 20:08:37,176 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 179 out of 216
[2021-03-11 20:08:37,177 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 176 flow. Second operand  has 6 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,177 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:37,177 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 216
[2021-03-11 20:08:37,177 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:37,251 INFO  L129       PetriNetUnfolder]: 36/101 cut-off events.
[2021-03-11 20:08:37,251 INFO  L130       PetriNetUnfolder]: For 232/319 co-relation queries the response was YES.
[2021-03-11 20:08:37,251 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 452 conditions, 101 events. 36/101 cut-off events. For 232/319 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 308 event pairs, 2 based on Foata normal form. 27/125 useless extension candidates. Maximal degree in co-relation 436. Up to 68 conditions per place. 
[2021-03-11 20:08:37,253 INFO  L132   encePairwiseOnDemand]: 209/216 looper letters, 6 selfloop transitions, 13 changer transitions 9/48 dead transitions.
[2021-03-11 20:08:37,253 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 48 transitions, 358 flow
[2021-03-11 20:08:37,254 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-03-11 20:08:37,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-03-11 20:08:37,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1283 transitions.
[2021-03-11 20:08:37,256 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.8485449735449735
[2021-03-11 20:08:37,256 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 1283 transitions.
[2021-03-11 20:08:37,256 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 1283 transitions.
[2021-03-11 20:08:37,257 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:37,257 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1283 transitions.
[2021-03-11 20:08:37,260 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 183.28571428571428) internal successors, (1283), 7 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,262 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,263 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,263 INFO  L185             Difference]: Start difference. First operand has 48 places, 35 transitions, 176 flow. Second operand 7 states and 1283 transitions.
[2021-03-11 20:08:37,263 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 48 transitions, 358 flow
[2021-03-11 20:08:37,267 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 48 transitions, 296 flow, removed 26 selfloop flow, removed 4 redundant places.
[2021-03-11 20:08:37,269 INFO  L241             Difference]: Finished difference. Result has 51 places, 39 transitions, 226 flow
[2021-03-11 20:08:37,269 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=51, PETRI_TRANSITIONS=39}
[2021-03-11 20:08:37,269 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places.
[2021-03-11 20:08:37,269 INFO  L480      AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 226 flow
[2021-03-11 20:08:37,270 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 179.83333333333334) internal successors, (1079), 6 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,270 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:37,270 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:37,270 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-03-11 20:08:37,270 INFO  L428      AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:37,271 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:37,271 INFO  L82        PathProgramCache]: Analyzing trace with hash -940530033, now seen corresponding path program 1 times
[2021-03-11 20:08:37,271 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:37,275 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030678934]
[2021-03-11 20:08:37,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:37,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:37,391 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,391 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,394 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,395 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,398 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,398 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,402 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,403 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,413 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,414 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-03-11 20:08:37,425 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,425 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:37,426 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:37,426 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030678934]
[2021-03-11 20:08:37,426 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:37,426 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-03-11 20:08:37,427 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724958821]
[2021-03-11 20:08:37,427 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-03-11 20:08:37,427 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:37,428 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-03-11 20:08:37,428 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-03-11 20:08:37,429 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 179 out of 216
[2021-03-11 20:08:37,430 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 226 flow. Second operand  has 7 states, 7 states have (on average 179.85714285714286) internal successors, (1259), 7 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,430 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:37,430 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 216
[2021-03-11 20:08:37,430 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:37,512 INFO  L129       PetriNetUnfolder]: 20/63 cut-off events.
[2021-03-11 20:08:37,512 INFO  L130       PetriNetUnfolder]: For 174/247 co-relation queries the response was YES.
[2021-03-11 20:08:37,512 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 282 conditions, 63 events. 20/63 cut-off events. For 174/247 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 126 event pairs, 0 based on Foata normal form. 24/84 useless extension candidates. Maximal degree in co-relation 265. Up to 38 conditions per place. 
[2021-03-11 20:08:37,513 INFO  L132   encePairwiseOnDemand]: 209/216 looper letters, 2 selfloop transitions, 17 changer transitions 5/44 dead transitions.
[2021-03-11 20:08:37,513 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 44 transitions, 330 flow
[2021-03-11 20:08:37,514 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-03-11 20:08:37,514 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2021-03-11 20:08:37,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1458 transitions.
[2021-03-11 20:08:37,517 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.84375
[2021-03-11 20:08:37,517 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 1458 transitions.
[2021-03-11 20:08:37,517 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 1458 transitions.
[2021-03-11 20:08:37,518 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:37,518 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1458 transitions.
[2021-03-11 20:08:37,520 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 182.25) internal successors, (1458), 8 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,523 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,523 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,523 INFO  L185             Difference]: Start difference. First operand has 51 places, 39 transitions, 226 flow. Second operand 8 states and 1458 transitions.
[2021-03-11 20:08:37,523 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 44 transitions, 330 flow
[2021-03-11 20:08:37,526 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 264 flow, removed 23 selfloop flow, removed 6 redundant places.
[2021-03-11 20:08:37,527 INFO  L241             Difference]: Finished difference. Result has 53 places, 39 transitions, 216 flow
[2021-03-11 20:08:37,527 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=216, PETRI_PLACES=53, PETRI_TRANSITIONS=39}
[2021-03-11 20:08:37,527 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places.
[2021-03-11 20:08:37,528 INFO  L480      AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 216 flow
[2021-03-11 20:08:37,530 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 179.85714285714286) internal successors, (1259), 7 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,530 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:37,530 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:37,530 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-03-11 20:08:37,531 INFO  L428      AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:37,531 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:37,531 INFO  L82        PathProgramCache]: Analyzing trace with hash 644486534, now seen corresponding path program 1 times
[2021-03-11 20:08:37,532 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:37,532 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031088248]
[2021-03-11 20:08:37,532 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:37,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:37,626 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,627 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:37,627 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,628 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:37,631 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,634 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21
[2021-03-11 20:08:37,645 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,646 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:37,652 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031088248]
[2021-03-11 20:08:37,652 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:37,652 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-03-11 20:08:37,652 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649803511]
[2021-03-11 20:08:37,652 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-03-11 20:08:37,652 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:37,653 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-03-11 20:08:37,653 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-03-11 20:08:37,654 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216
[2021-03-11 20:08:37,655 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 216 flow. Second operand  has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,655 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:37,655 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216
[2021-03-11 20:08:37,655 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:37,750 INFO  L129       PetriNetUnfolder]: 129/308 cut-off events.
[2021-03-11 20:08:37,751 INFO  L130       PetriNetUnfolder]: For 366/391 co-relation queries the response was YES.
[2021-03-11 20:08:37,752 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 931 conditions, 308 events. 129/308 cut-off events. For 366/391 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1490 event pairs, 14 based on Foata normal form. 2/297 useless extension candidates. Maximal degree in co-relation 914. Up to 91 conditions per place. 
[2021-03-11 20:08:37,754 INFO  L132   encePairwiseOnDemand]: 207/216 looper letters, 10 selfloop transitions, 11 changer transitions 1/52 dead transitions.
[2021-03-11 20:08:37,754 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 286 flow
[2021-03-11 20:08:37,754 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-03-11 20:08:37,754 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2021-03-11 20:08:37,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions.
[2021-03-11 20:08:37,757 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.7862654320987654
[2021-03-11 20:08:37,757 INFO  L72            ComplementDD]: Start complementDD. Operand 6 states and 1019 transitions.
[2021-03-11 20:08:37,757 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 1019 transitions.
[2021-03-11 20:08:37,757 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:37,757 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1019 transitions.
[2021-03-11 20:08:37,759 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 7 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,761 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,762 INFO  L81            ComplementDD]: Finished complementDD. Result  has 7 states, 7 states have (on average 216.0) internal successors, (1512), 7 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,762 INFO  L185             Difference]: Start difference. First operand has 53 places, 39 transitions, 216 flow. Second operand 6 states and 1019 transitions.
[2021-03-11 20:08:37,762 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 286 flow
[2021-03-11 20:08:37,765 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 52 transitions, 222 flow, removed 19 selfloop flow, removed 7 redundant places.
[2021-03-11 20:08:37,767 INFO  L241             Difference]: Finished difference. Result has 53 places, 48 transitions, 229 flow
[2021-03-11 20:08:37,767 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=53, PETRI_TRANSITIONS=48}
[2021-03-11 20:08:37,768 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places.
[2021-03-11 20:08:37,768 INFO  L480      AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 229 flow
[2021-03-11 20:08:37,768 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,768 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:37,768 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:37,768 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-03-11 20:08:37,768 INFO  L428      AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:37,769 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:37,769 INFO  L82        PathProgramCache]: Analyzing trace with hash 1139114752, now seen corresponding path program 2 times
[2021-03-11 20:08:37,769 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:37,769 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625421594]
[2021-03-11 20:08:37,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:37,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:37,867 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,868 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:37,868 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,869 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:37,872 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,872 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:37,878 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,879 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21
[2021-03-11 20:08:37,890 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:37,890 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:37,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:37,895 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625421594]
[2021-03-11 20:08:37,896 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:37,896 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-03-11 20:08:37,896 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687722614]
[2021-03-11 20:08:37,896 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-03-11 20:08:37,896 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:37,897 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-03-11 20:08:37,897 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2021-03-11 20:08:37,898 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 163 out of 216
[2021-03-11 20:08:37,899 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 229 flow. Second operand  has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:37,899 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:37,899 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 216
[2021-03-11 20:08:37,899 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:38,013 INFO  L129       PetriNetUnfolder]: 201/476 cut-off events.
[2021-03-11 20:08:38,014 INFO  L130       PetriNetUnfolder]: For 406/457 co-relation queries the response was YES.
[2021-03-11 20:08:38,016 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 476 events. 201/476 cut-off events. For 406/457 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2702 event pairs, 1 based on Foata normal form. 12/461 useless extension candidates. Maximal degree in co-relation 1411. Up to 129 conditions per place. 
[2021-03-11 20:08:38,018 INFO  L132   encePairwiseOnDemand]: 208/216 looper letters, 19 selfloop transitions, 17 changer transitions 1/68 dead transitions.
[2021-03-11 20:08:38,018 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 68 transitions, 409 flow
[2021-03-11 20:08:38,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-03-11 20:08:38,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-03-11 20:08:38,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1167 transitions.
[2021-03-11 20:08:38,021 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.7718253968253969
[2021-03-11 20:08:38,021 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 1167 transitions.
[2021-03-11 20:08:38,021 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 1167 transitions.
[2021-03-11 20:08:38,022 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:38,022 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1167 transitions.
[2021-03-11 20:08:38,024 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 166.71428571428572) internal successors, (1167), 7 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,026 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,027 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,027 INFO  L185             Difference]: Start difference. First operand has 53 places, 48 transitions, 229 flow. Second operand 7 states and 1167 transitions.
[2021-03-11 20:08:38,027 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 68 transitions, 409 flow
[2021-03-11 20:08:38,033 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 407 flow, removed 1 selfloop flow, removed 1 redundant places.
[2021-03-11 20:08:38,035 INFO  L241             Difference]: Finished difference. Result has 62 places, 58 transitions, 356 flow
[2021-03-11 20:08:38,035 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=356, PETRI_PLACES=62, PETRI_TRANSITIONS=58}
[2021-03-11 20:08:38,036 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places.
[2021-03-11 20:08:38,036 INFO  L480      AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 356 flow
[2021-03-11 20:08:38,036 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,036 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:38,036 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:38,036 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-03-11 20:08:38,037 INFO  L428      AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:38,037 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:38,037 INFO  L82        PathProgramCache]: Analyzing trace with hash 1356999862, now seen corresponding path program 3 times
[2021-03-11 20:08:38,037 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:38,039 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966263511]
[2021-03-11 20:08:38,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:38,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:38,121 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,122 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:38,123 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,123 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:38,126 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,126 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:38,130 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,131 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21
[2021-03-11 20:08:38,141 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,142 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:38,147 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:38,147 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966263511]
[2021-03-11 20:08:38,147 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:38,147 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-03-11 20:08:38,148 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292623594]
[2021-03-11 20:08:38,148 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-03-11 20:08:38,148 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:38,148 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-03-11 20:08:38,148 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2021-03-11 20:08:38,149 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 166 out of 216
[2021-03-11 20:08:38,150 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 356 flow. Second operand  has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,150 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:38,151 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 216
[2021-03-11 20:08:38,151 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:38,263 INFO  L129       PetriNetUnfolder]: 252/577 cut-off events.
[2021-03-11 20:08:38,263 INFO  L130       PetriNetUnfolder]: For 779/860 co-relation queries the response was YES.
[2021-03-11 20:08:38,266 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 1851 conditions, 577 events. 252/577 cut-off events. For 779/860 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 3470 event pairs, 15 based on Foata normal form. 28/567 useless extension candidates. Maximal degree in co-relation 1832. Up to 167 conditions per place. 
[2021-03-11 20:08:38,267 INFO  L132   encePairwiseOnDemand]: 207/216 looper letters, 8 selfloop transitions, 4 changer transitions 24/66 dead transitions.
[2021-03-11 20:08:38,267 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 482 flow
[2021-03-11 20:08:38,268 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-03-11 20:08:38,268 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2021-03-11 20:08:38,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1188 transitions.
[2021-03-11 20:08:38,270 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.7857142857142857
[2021-03-11 20:08:38,270 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 1188 transitions.
[2021-03-11 20:08:38,271 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 1188 transitions.
[2021-03-11 20:08:38,271 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:38,271 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1188 transitions.
[2021-03-11 20:08:38,274 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 169.71428571428572) internal successors, (1188), 7 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,276 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,276 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 216.0) internal successors, (1728), 8 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,277 INFO  L185             Difference]: Start difference. First operand has 62 places, 58 transitions, 356 flow. Second operand 7 states and 1188 transitions.
[2021-03-11 20:08:38,277 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 482 flow
[2021-03-11 20:08:38,284 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 480 flow, removed 1 selfloop flow, removed 1 redundant places.
[2021-03-11 20:08:38,286 INFO  L241             Difference]: Finished difference. Result has 68 places, 41 transitions, 214 flow
[2021-03-11 20:08:38,286 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=214, PETRI_PLACES=68, PETRI_TRANSITIONS=41}
[2021-03-11 20:08:38,286 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places.
[2021-03-11 20:08:38,286 INFO  L480      AbstractCegarLoop]: Abstraction has has 68 places, 41 transitions, 214 flow
[2021-03-11 20:08:38,286 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,287 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:38,287 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:38,287 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-03-11 20:08:38,287 INFO  L428      AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:38,287 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:38,287 INFO  L82        PathProgramCache]: Analyzing trace with hash 1207877216, now seen corresponding path program 4 times
[2021-03-11 20:08:38,287 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:38,287 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862081550]
[2021-03-11 20:08:38,288 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:38,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:38,350 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,350 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-11 20:08:38,351 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,351 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:38,355 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,355 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:38,358 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,359 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:38,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:38,363 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862081550]
[2021-03-11 20:08:38,363 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:38,364 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-03-11 20:08:38,364 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098403133]
[2021-03-11 20:08:38,364 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-03-11 20:08:38,364 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:38,365 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-03-11 20:08:38,365 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-03-11 20:08:38,366 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 179 out of 216
[2021-03-11 20:08:38,367 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 41 transitions, 214 flow. Second operand  has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,367 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:38,367 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 216
[2021-03-11 20:08:38,367 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:38,414 INFO  L129       PetriNetUnfolder]: 66/180 cut-off events.
[2021-03-11 20:08:38,414 INFO  L130       PetriNetUnfolder]: For 180/184 co-relation queries the response was YES.
[2021-03-11 20:08:38,415 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 535 conditions, 180 events. 66/180 cut-off events. For 180/184 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 762 event pairs, 6 based on Foata normal form. 2/171 useless extension candidates. Maximal degree in co-relation 517. Up to 53 conditions per place. 
[2021-03-11 20:08:38,416 INFO  L132   encePairwiseOnDemand]: 212/216 looper letters, 4 selfloop transitions, 2 changer transitions 3/43 dead transitions.
[2021-03-11 20:08:38,416 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 43 transitions, 240 flow
[2021-03-11 20:08:38,416 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-11 20:08:38,416 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-03-11 20:08:38,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 903 transitions.
[2021-03-11 20:08:38,418 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.8361111111111111
[2021-03-11 20:08:38,418 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 903 transitions.
[2021-03-11 20:08:38,418 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 903 transitions.
[2021-03-11 20:08:38,419 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:38,419 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 903 transitions.
[2021-03-11 20:08:38,420 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 180.6) internal successors, (903), 5 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,422 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,422 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,422 INFO  L185             Difference]: Start difference. First operand has 68 places, 41 transitions, 214 flow. Second operand 5 states and 903 transitions.
[2021-03-11 20:08:38,422 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 43 transitions, 240 flow
[2021-03-11 20:08:38,424 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 43 transitions, 213 flow, removed 7 selfloop flow, removed 7 redundant places.
[2021-03-11 20:08:38,425 INFO  L241             Difference]: Finished difference. Result has 62 places, 40 transitions, 196 flow
[2021-03-11 20:08:38,426 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=62, PETRI_TRANSITIONS=40}
[2021-03-11 20:08:38,426 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places.
[2021-03-11 20:08:38,426 INFO  L480      AbstractCegarLoop]: Abstraction has has 62 places, 40 transitions, 196 flow
[2021-03-11 20:08:38,427 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 5 states, 5 states have (on average 180.0) internal successors, (900), 5 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,427 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:38,427 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:38,427 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-03-11 20:08:38,427 INFO  L428      AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:38,427 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:38,427 INFO  L82        PathProgramCache]: Analyzing trace with hash 1567912314, now seen corresponding path program 5 times
[2021-03-11 20:08:38,428 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:38,428 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904964712]
[2021-03-11 20:08:38,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:38,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-11 20:08:38,562 INFO  L142       QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size
[2021-03-11 20:08:38,563 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30
[2021-03-11 20:08:38,582 INFO  L142       QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size
[2021-03-11 20:08:38,582 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43
[2021-03-11 20:08:38,612 INFO  L142       QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size
[2021-03-11 20:08:38,613 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-03-11 20:08:38,624 INFO  L142       QuantifierPusher]: treesize reduction 26, result has 55.2 percent of original size
[2021-03-11 20:08:38,627 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32
[2021-03-11 20:08:38,645 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,646 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-03-11 20:08:38,653 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-11 20:08:38,654 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-11 20:08:38,661 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-11 20:08:38,661 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904964712]
[2021-03-11 20:08:38,662 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-11 20:08:38,662 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-03-11 20:08:38,664 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495384278]
[2021-03-11 20:08:38,664 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-03-11 20:08:38,664 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-11 20:08:38,665 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-03-11 20:08:38,665 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-03-11 20:08:38,667 INFO  L500   CegarLoopForPetriNet]: Number of universal loopers: 160 out of 216
[2021-03-11 20:08:38,668 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 40 transitions, 196 flow. Second operand  has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,668 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-11 20:08:38,668 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 216
[2021-03-11 20:08:38,668 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-11 20:08:38,839 INFO  L129       PetriNetUnfolder]: 183/399 cut-off events.
[2021-03-11 20:08:38,839 INFO  L130       PetriNetUnfolder]: For 419/439 co-relation queries the response was YES.
[2021-03-11 20:08:38,841 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 399 events. 183/399 cut-off events. For 419/439 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2171 event pairs, 16 based on Foata normal form. 1/364 useless extension candidates. Maximal degree in co-relation 1181. Up to 133 conditions per place. 
[2021-03-11 20:08:38,842 INFO  L132   encePairwiseOnDemand]: 208/216 looper letters, 7 selfloop transitions, 7 changer transitions 3/49 dead transitions.
[2021-03-11 20:08:38,842 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 49 transitions, 258 flow
[2021-03-11 20:08:38,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-03-11 20:08:38,842 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2021-03-11 20:08:38,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1298 transitions.
[2021-03-11 20:08:38,845 INFO  L545   CegarLoopForPetriNet]: DFA transition density 0.7511574074074074
[2021-03-11 20:08:38,845 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 1298 transitions.
[2021-03-11 20:08:38,846 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 1298 transitions.
[2021-03-11 20:08:38,846 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-11 20:08:38,846 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1298 transitions.
[2021-03-11 20:08:38,849 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 162.25) internal successors, (1298), 8 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,851 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,851 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 216.0) internal successors, (1944), 9 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,852 INFO  L185             Difference]: Start difference. First operand has 62 places, 40 transitions, 196 flow. Second operand 8 states and 1298 transitions.
[2021-03-11 20:08:38,852 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 49 transitions, 258 flow
[2021-03-11 20:08:38,855 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 49 transitions, 252 flow, removed 1 selfloop flow, removed 4 redundant places.
[2021-03-11 20:08:38,856 INFO  L241             Difference]: Finished difference. Result has 69 places, 45 transitions, 245 flow
[2021-03-11 20:08:38,856 INFO  L318   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=245, PETRI_PLACES=69, PETRI_TRANSITIONS=45}
[2021-03-11 20:08:38,857 INFO  L335   CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places.
[2021-03-11 20:08:38,857 INFO  L480      AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 245 flow
[2021-03-11 20:08:38,869 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-11 20:08:38,869 INFO  L247   CegarLoopForPetriNet]: Found error trace
[2021-03-11 20:08:38,869 INFO  L255   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-11 20:08:38,869 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-03-11 20:08:38,869 INFO  L428      AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-11 20:08:38,870 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-11 20:08:38,870 INFO  L82        PathProgramCache]: Analyzing trace with hash 101262844, now seen corresponding path program 6 times
[2021-03-11 20:08:38,870 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-11 20:08:38,870 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968861087]
[2021-03-11 20:08:38,870 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-11 20:08:38,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-11 20:08:38,918 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-11 20:08:38,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-11 20:08:38,952 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-11 20:08:38,979 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-03-11 20:08:38,979 INFO  L620         BasicCegarLoop]: Counterexample might be feasible
[2021-03-11 20:08:38,980 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2021-03-11 20:08:39,076 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:08:39 BasicIcfg
[2021-03-11 20:08:39,077 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-03-11 20:08:39,077 INFO  L168              Benchmark]: Toolchain (without parser) took 11614.04 ms. Allocated memory was 255.9 MB in the beginning and 557.8 MB in the end (delta: 302.0 MB). Free memory was 232.6 MB in the beginning and 403.3 MB in the end (delta: -170.7 MB). Peak memory consumption was 131.1 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,078 INFO  L168              Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,078 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 547.80 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 232.2 MB in the beginning and 311.4 MB in the end (delta: -79.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,078 INFO  L168              Benchmark]: Boogie Procedure Inliner took 72.40 ms. Allocated memory is still 352.3 MB. Free memory was 311.4 MB in the beginning and 308.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,078 INFO  L168              Benchmark]: Boogie Preprocessor took 64.00 ms. Allocated memory is still 352.3 MB. Free memory was 308.8 MB in the beginning and 306.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,079 INFO  L168              Benchmark]: RCFGBuilder took 1748.05 ms. Allocated memory is still 352.3 MB. Free memory was 306.7 MB in the beginning and 318.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,079 INFO  L168              Benchmark]: TraceAbstraction took 9174.37 ms. Allocated memory was 352.3 MB in the beginning and 557.8 MB in the end (delta: 205.5 MB). Free memory was 318.6 MB in the beginning and 403.3 MB in the end (delta: -84.7 MB). Peak memory consumption was 121.9 MB. Max. memory is 16.0 GB.
[2021-03-11 20:08:39,080 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 547.80 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 232.2 MB in the beginning and 311.4 MB in the end (delta: -79.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 72.40 ms. Allocated memory is still 352.3 MB. Free memory was 311.4 MB in the beginning and 308.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 64.00 ms. Allocated memory is still 352.3 MB. Free memory was 308.8 MB in the beginning and 306.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * RCFGBuilder took 1748.05 ms. Allocated memory is still 352.3 MB. Free memory was 306.7 MB in the beginning and 318.6 MB in the end (delta: -11.9 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 9174.37 ms. Allocated memory was 352.3 MB in the beginning and 557.8 MB in the end (delta: 205.5 MB). Free memory was 318.6 MB in the beginning and 403.3 MB in the end (delta: -84.7 MB). Peak memory consumption was 121.9 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 5962.5ms, 126 PlacesBefore, 42 PlacesAfterwards, 115 TransitionsBefore, 30 TransitionsAfterwards, 2610 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 97 TotalNumberOfCompositions, 6523 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3318, positive: 3138, positive conditional: 0, positive unconditional: 3138, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1763, positive: 1718, positive conditional: 0, positive unconditional: 1718, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1763, positive: 1701, positive conditional: 0, positive unconditional: 1701, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 518, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 466, negative conditional: 0, negative unconditional: 466, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 3318, positive: 1420, positive conditional: 0, positive unconditional: 1420, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 1763, unknown conditional: 0, unknown unconditional: 1763] , Statistics on independence cache: Total cache size (in pairs): 205, Positive cache size: 183, Positive conditional cache size: 0, Positive unconditional cache size: 183, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L710]               0  int __unbuffered_cnt = 0;
[L712]               0  int __unbuffered_p0_EAX = 0;
[L714]               0  int __unbuffered_p1_EAX = 0;
[L716]               0  int __unbuffered_p2_EAX = 0;
[L718]               0  int __unbuffered_p3_EAX = 0;
[L720]               0  int __unbuffered_p3_EBX = 0;
[L722]               0  int a = 0;
[L724]               0  int b = 0;
[L725]               0  _Bool main$tmp_guard0;
[L726]               0  _Bool main$tmp_guard1;
[L728]               0  int x = 0;
[L730]               0  int y = 0;
[L731]               0  _Bool y$flush_delayed;
[L732]               0  int y$mem_tmp;
[L733]               0  _Bool y$r_buff0_thd0;
[L734]               0  _Bool y$r_buff0_thd1;
[L735]               0  _Bool y$r_buff0_thd2;
[L736]               0  _Bool y$r_buff0_thd3;
[L737]               0  _Bool y$r_buff0_thd4;
[L738]               0  _Bool y$r_buff1_thd0;
[L739]               0  _Bool y$r_buff1_thd1;
[L740]               0  _Bool y$r_buff1_thd2;
[L741]               0  _Bool y$r_buff1_thd3;
[L742]               0  _Bool y$r_buff1_thd4;
[L743]               0  _Bool y$read_delayed;
[L744]               0  int *y$read_delayed_var;
[L745]               0  int y$w_buff0;
[L746]               0  _Bool y$w_buff0_used;
[L747]               0  int y$w_buff1;
[L748]               0  _Bool y$w_buff1_used;
[L750]               0  int z = 0;
[L751]               0  _Bool weak$$choice0;
[L752]               0  _Bool weak$$choice2;
[L863]               0  pthread_t t941;
[L864]  FCALL, FORK  0  pthread_create(&t941, ((void *)0), P0, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=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_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L865]               0  pthread_t t942;
[L866]  FCALL, FORK  0  pthread_create(&t942, ((void *)0), P1, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=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_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L867]               0  pthread_t t943;
[L868]  FCALL, FORK  0  pthread_create(&t943, ((void *)0), P2, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=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_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L869]               0  pthread_t t944;
[L870]  FCALL, FORK  0  pthread_create(&t944, ((void *)0), P3, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=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_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L799]               3  y$w_buff1 = y$w_buff0
[L800]               3  y$w_buff0 = 1
[L801]               3  y$w_buff1_used = y$w_buff0_used
[L802]               3  y$w_buff0_used = (_Bool)1
[L18]   COND FALSE   3  !(!expression)
[L804]               3  y$r_buff1_thd0 = y$r_buff0_thd0
[L805]               3  y$r_buff1_thd1 = y$r_buff0_thd1
[L806]               3  y$r_buff1_thd2 = y$r_buff0_thd2
[L807]               3  y$r_buff1_thd3 = y$r_buff0_thd3
[L808]               3  y$r_buff1_thd4 = y$r_buff0_thd4
[L809]               3  y$r_buff0_thd3 = (_Bool)1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L812]               3  __unbuffered_p2_EAX = z
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L829]               4  z = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L832]               4  a = 1
[L835]               4  __unbuffered_p3_EAX = a
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L838]               4  __unbuffered_p3_EBX = b
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L756]               1  b = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L759]               1  __unbuffered_p0_EAX = x
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L771]               2  x = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, 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$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L841]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y)
[L841]  EXPR         4  y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y
[L841]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y)
[L841]               4  y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y)
[L842]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used
[L842]               4  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used
[L843]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used
[L843]               4  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used
[L844]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4
[L844]               4  y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4
[L845]  EXPR         4  y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4
[L845]               4  y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4
[L774]               2  weak$$choice0 = __VERIFIER_nondet_bool()
[L775]               2  weak$$choice2 = __VERIFIER_nondet_bool()
[L776]               2  y$flush_delayed = weak$$choice2
[L777]               2  y$mem_tmp = y
[L778]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)
[L778]               2  y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)
[L779]  EXPR         2  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L779]               2  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L780]  EXPR         2  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L780]               2  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L781]  EXPR         2  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L781]               2  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L782]  EXPR         2  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L782]               2  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L783]  EXPR         2  weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L783]               2  y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L784]  EXPR         2  weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L784]               2  y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L785]               2  __unbuffered_p1_EAX = y
[L786]  EXPR         2  y$flush_delayed ? y$mem_tmp : y
[L786]               2  y = y$flush_delayed ? y$mem_tmp : y
[L787]               2  y$flush_delayed = (_Bool)0
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, 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=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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]
[L815]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y)
[L815]               3  y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y)
[L816]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used
[L816]               3  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used
[L817]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used
[L817]               3  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used
[L818]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3
[L818]               3  y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3
[L819]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3
[L819]               3  y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3
[L822]               3  __unbuffered_cnt = __unbuffered_cnt + 1
[L824]               3  return 0;
[L764]               1  __unbuffered_cnt = __unbuffered_cnt + 1
[L766]               1  return 0;
[L792]               2  __unbuffered_cnt = __unbuffered_cnt + 1
[L794]               2  return 0;
[L848]               4  __unbuffered_cnt = __unbuffered_cnt + 1
[L850]               4  return 0;
[L872]               0  main$tmp_guard0 = __unbuffered_cnt == 4
[L3]    COND FALSE   0  !(!cond)
[L876]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L876]  EXPR         0  y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y
[L876]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L876]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L877]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L877]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L878]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L878]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L879]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L879]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L880]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L880]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L883]               0  main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0)
[L18]   COND TRUE    0  !expression
[L18]                0  reach_error()
        VAL             [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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 5 procedures, 118 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 8966.7ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1182.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6038.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 74 SDtfs, 63 SDslu, 115 SDs, 0 SdLazy, 309 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 281.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 413.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=8, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.8ms SsaConstructionTime, 561.2ms SatisfiabilityAnalysisTime, 852.0ms InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 1327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...