/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i


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


This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239
[2021-03-25 04:59:43,397 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-03-25 04:59:43,400 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-03-25 04:59:43,437 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-03-25 04:59:43,437 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-03-25 04:59:43,440 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-03-25 04:59:43,443 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-03-25 04:59:43,448 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2021-03-25 04:59:43,457 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-03-25 04:59:43,458 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-03-25 04:59:43,460 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-03-25 04:59:43,461 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-03-25 04:59:43,463 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-03-25 04:59:43,464 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-03-25 04:59:43,466 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-03-25 04:59:43,474 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-03-25 04:59:43,475 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-03-25 04:59:43,476 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-03-25 04:59:43,477 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-03-25 04:59:43,479 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-03-25 04:59:43,485 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-03-25 04:59:43,485 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-03-25 04:59:43,487 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-03-25 04:59:43,487 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-03-25 04:59:43,488 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-03-25 04:59:43,488 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-03-25 04:59:43,489 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-03-25 04:59:43,490 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-03-25 04:59:43,491 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-03-25 04:59:43,492 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-03-25 04:59:43,492 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-03-25 04:59:43,492 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-03-25 04:59:43,493 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-03-25 04:59:43,493 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-03-25 04:59:43,493 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-03-25 04:59:43,494 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-03-25 04:59:43,498 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-RepeatedVariableLbe.epf
[2021-03-25 04:59:43,531 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-03-25 04:59:43,531 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-03-25 04:59:43,534 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-03-25 04:59:43,534 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-03-25 04:59:43,535 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-03-25 04:59:43,535 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-03-25 04:59:43,535 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-03-25 04:59:43,535 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-03-25 04:59:43,535 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-03-25 04:59:43,536 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-03-25 04:59:43,536 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-03-25 04:59:43,536 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-03-25 04:59:43,537 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-03-25 04:59:43,537 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-03-25 04:59:43,537 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-03-25 04:59:43,537 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-03-25 04:59:43,537 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-03-25 04:59:43,537 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-03-25 04:59:43,538 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-03-25 04:59:43,538 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-03-25 04:59:43,538 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-03-25 04:59:43,538 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-03-25 04:59:43,538 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-03-25 04:59:43,539 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-03-25 04:59:43,540 INFO  L138        SettingsManager]:  * Apply repeated Lipton Reduction=true
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-03-25 04:59:43,818 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-03-25 04:59:43,853 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-03-25 04:59:43,855 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-03-25 04:59:43,856 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-03-25 04:59:43,857 INFO  L275        PluginConnector]: CDTParser initialized
[2021-03-25 04:59:43,858 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i
[2021-03-25 04:59:43,914 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8deb26e50/b2c2f2f7d8a54d2dafe3e08e7f4e08c5/FLAG70b657fa5
[2021-03-25 04:59:44,412 INFO  L306              CDTParser]: Found 1 translation units.
[2021-03-25 04:59:44,413 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i
[2021-03-25 04:59:44,429 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8deb26e50/b2c2f2f7d8a54d2dafe3e08e7f4e08c5/FLAG70b657fa5
[2021-03-25 04:59:44,726 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8deb26e50/b2c2f2f7d8a54d2dafe3e08e7f4e08c5
[2021-03-25 04:59:44,732 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-03-25 04:59:44,734 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-03-25 04:59:44,738 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-03-25 04:59:44,738 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-03-25 04:59:44,741 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-03-25 04:59:44,742 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:59:44" (1/1) ...
[2021-03-25 04:59:44,744 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e331273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:44, skipping insertion in model container
[2021-03-25 04:59:44,744 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:59:44" (1/1) ...
[2021-03-25 04:59:44,750 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-03-25 04:59:44,786 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-03-25 04:59:44,905 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/safe006_tso.oepc.i[950,963]
[2021-03-25 04:59:45,011 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-25 04:59:45,037 INFO  L203         MainTranslator]: Completed pre-run
[2021-03-25 04:59:45,058 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/safe006_tso.oepc.i[950,963]
[2021-03-25 04:59:45,102 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-25 04:59:45,172 INFO  L208         MainTranslator]: Completed translation
[2021-03-25 04:59:45,173 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45 WrapperNode
[2021-03-25 04:59:45,174 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-03-25 04:59:45,175 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-03-25 04:59:45,175 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-03-25 04:59:45,175 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-03-25 04:59:45,181 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,212 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,231 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-03-25 04:59:45,231 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-03-25 04:59:45,232 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-03-25 04:59:45,232 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-03-25 04:59:45,237 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,238 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,243 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,243 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,258 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,260 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,261 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (1/1) ...
[2021-03-25 04:59:45,262 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-03-25 04:59:45,263 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-03-25 04:59:45,263 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-03-25 04:59:45,263 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-03-25 04:59:45,264 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (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
[2021-03-25 04:59:45,336 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-03-25 04:59:45,337 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-03-25 04:59:45,337 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-03-25 04:59:45,337 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-03-25 04:59:45,338 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2021-03-25 04:59:45,338 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2021-03-25 04:59:45,338 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2021-03-25 04:59:45,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2021-03-25 04:59:45,339 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-03-25 04:59:45,339 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-03-25 04:59:45,339 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-03-25 04:59:45,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-03-25 04:59:45,341 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-03-25 04:59:45,689 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-03-25 04:59:45,689 INFO  L299             CfgBuilder]: Removed 8 assume(true) statements.
[2021-03-25 04:59:45,692 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:59:45 BoogieIcfgContainer
[2021-03-25 04:59:45,692 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-03-25 04:59:45,696 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-03-25 04:59:45,697 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-03-25 04:59:45,699 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-03-25 04:59:45,699 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:59:44" (1/3) ...
[2021-03-25 04:59:45,700 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbc704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:59:45, skipping insertion in model container
[2021-03-25 04:59:45,700 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:59:45" (2/3) ...
[2021-03-25 04:59:45,700 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbc704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:59:45, skipping insertion in model container
[2021-03-25 04:59:45,700 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:59:45" (3/3) ...
[2021-03-25 04:59:45,702 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i
[2021-03-25 04:59:45,708 INFO  L149   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-03-25 04:59:45,712 INFO  L161   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-03-25 04:59:45,713 INFO  L323   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-03-25 04:59:45,737 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,737 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,737 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,738 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,738 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,738 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,738 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,738 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,739 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,739 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,739 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,739 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,740 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,741 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,741 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,741 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,741 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,741 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,742 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,743 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,744 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,744 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,744 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,748 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,748 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,748 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,749 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 04:59:45,750 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-03-25 04:59:45,767 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-03-25 04:59:45,786 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-03-25 04:59:45,786 INFO  L377      AbstractCegarLoop]: Hoare is false
[2021-03-25 04:59:45,786 INFO  L378      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-03-25 04:59:45,786 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-03-25 04:59:45,786 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-03-25 04:59:45,786 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-03-25 04:59:45,787 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-03-25 04:59:45,787 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-03-25 04:59:45,796 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow
[2021-03-25 04:59:45,827 INFO  L129       PetriNetUnfolder]: 2/59 cut-off events.
[2021-03-25 04:59:45,827 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 04:59:45,830 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. 
[2021-03-25 04:59:45,830 INFO  L82        GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow
[2021-03-25 04:59:45,833 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow
[2021-03-25 04:59:45,835 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 04:59:45,843 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow
[2021-03-25 04:59:45,846 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow
[2021-03-25 04:59:45,847 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow
[2021-03-25 04:59:45,861 INFO  L129       PetriNetUnfolder]: 1/49 cut-off events.
[2021-03-25 04:59:45,861 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 04:59:45,861 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. 
[2021-03-25 04:59:45,863 INFO  L142        LiptonReduction]: Number of co-enabled transitions 456
[2021-03-25 04:59:47,023 INFO  L154        LiptonReduction]: Checked pairs total: 608
[2021-03-25 04:59:47,023 INFO  L156        LiptonReduction]: Total number of compositions: 34
[2021-03-25 04:59:47,025 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1191
[2021-03-25 04:59:47,040 INFO  L129       PetriNetUnfolder]: 0/13 cut-off events.
[2021-03-25 04:59:47,041 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 04:59:47,041 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 04:59:47,041 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 04:59:47,042 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 04:59:47,045 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 04:59:47,046 INFO  L82        PathProgramCache]: Analyzing trace with hash -1656014901, now seen corresponding path program 1 times
[2021-03-25 04:59:47,053 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 04:59:47,053 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397205178]
[2021-03-25 04:59:47,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 04:59:47,168 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 04:59:47,239 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:47,240 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 04:59:47,241 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:47,241 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 04:59:47,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 04:59:47,247 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397205178]
[2021-03-25 04:59:47,248 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 04:59:47,248 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-03-25 04:59:47,248 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158336278]
[2021-03-25 04:59:47,255 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-03-25 04:59:47,255 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 04:59:47,267 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-03-25 04:59:47,269 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-03-25 04:59:47,275 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 81 out of 95
[2021-03-25 04:59:47,278 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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)
[2021-03-25 04:59:47,279 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 04:59:47,279 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 95
[2021-03-25 04:59:47,280 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 04:59:47,308 INFO  L129       PetriNetUnfolder]: 0/15 cut-off events.
[2021-03-25 04:59:47,308 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 04:59:47,308 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. 
[2021-03-25 04:59:47,309 INFO  L132   encePairwiseOnDemand]: 92/95 looper letters, 1 selfloop transitions, 2 changer transitions 0/15 dead transitions.
[2021-03-25 04:59:47,309 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-25 04:59:47,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-03-25 04:59:47,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions.
[2021-03-25 04:59:47,323 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8666666666666667
[2021-03-25 04:59:47,323 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 247 transitions.
[2021-03-25 04:59:47,324 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions.
[2021-03-25 04:59:47,326 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 04:59:47,329 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions.
[2021-03-25 04:59:47,335 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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)
[2021-03-25 04:59:47,341 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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)
[2021-03-25 04:59:47,344 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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)
[2021-03-25 04:59:47,345 INFO  L185             Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 247 transitions.
[2021-03-25 04:59:47,351 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,353 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 40 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-03-25 04:59:47,354 INFO  L241             Difference]: Finished difference. Result has 23 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,356 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=15}
[2021-03-25 04:59:47,357 INFO  L343   CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places.
[2021-03-25 04:59:47,357 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 04:59:47,357 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,358 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,358 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 23 places, 15 transitions, 42 flow
[2021-03-25 04:59:47,361 INFO  L129       PetriNetUnfolder]: 0/15 cut-off events.
[2021-03-25 04:59:47,361 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2021-03-25 04:59:47,361 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. 
[2021-03-25 04:59:47,361 INFO  L142        LiptonReduction]: Number of co-enabled transitions 64
[2021-03-25 04:59:47,751 WARN  L205               SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74
[2021-03-25 04:59:47,981 WARN  L205               SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74
[2021-03-25 04:59:48,049 INFO  L154        LiptonReduction]: Checked pairs total: 154
[2021-03-25 04:59:48,050 INFO  L156        LiptonReduction]: Total number of compositions: 3
[2021-03-25 04:59:48,050 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 693
[2021-03-25 04:59:48,051 INFO  L480      AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow
[2021-03-25 04:59:48,051 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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)
[2021-03-25 04:59:48,051 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 04:59:48,051 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 04:59:48,052 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-03-25 04:59:48,052 INFO  L428      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 04:59:48,052 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 04:59:48,052 INFO  L82        PathProgramCache]: Analyzing trace with hash 203145301, now seen corresponding path program 1 times
[2021-03-25 04:59:48,052 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 04:59:48,053 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903942145]
[2021-03-25 04:59:48,053 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 04:59:48,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 04:59:48,139 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:48,140 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 04:59:48,140 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:48,141 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 04:59:48,143 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:48,143 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 04:59:48,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 04:59:48,157 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903942145]
[2021-03-25 04:59:48,157 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 04:59:48,157 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-25 04:59:48,157 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948187584]
[2021-03-25 04:59:48,158 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-25 04:59:48,158 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 04:59:48,159 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-25 04:59:48,159 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-25 04:59:48,161 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 78 out of 98
[2021-03-25 04:59:48,161 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand  has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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)
[2021-03-25 04:59:48,163 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 04:59:48,163 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 98
[2021-03-25 04:59:48,164 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 04:59:48,186 INFO  L129       PetriNetUnfolder]: 0/17 cut-off events.
[2021-03-25 04:59:48,186 INFO  L130       PetriNetUnfolder]: For 4/5 co-relation queries the response was YES.
[2021-03-25 04:59:48,186 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 37 conditions, 17 events. 0/17 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. 
[2021-03-25 04:59:48,186 INFO  L132   encePairwiseOnDemand]: 94/98 looper letters, 1 selfloop transitions, 3 changer transitions 1/13 dead transitions.
[2021-03-25 04:59:48,186 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 51 flow
[2021-03-25 04:59:48,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-03-25 04:59:48,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2021-03-25 04:59:48,188 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions.
[2021-03-25 04:59:48,189 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8137755102040817
[2021-03-25 04:59:48,189 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 319 transitions.
[2021-03-25 04:59:48,189 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions.
[2021-03-25 04:59:48,189 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 04:59:48,189 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions.
[2021-03-25 04:59:48,190 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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)
[2021-03-25 04:59:48,192 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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)
[2021-03-25 04:59:48,192 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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)
[2021-03-25 04:59:48,192 INFO  L185             Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 4 states and 319 transitions.
[2021-03-25 04:59:48,192 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 51 flow
[2021-03-25 04:59:48,193 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 45 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-03-25 04:59:48,193 INFO  L241             Difference]: Finished difference. Result has 23 places, 12 transitions, 46 flow
[2021-03-25 04:59:48,193 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=12}
[2021-03-25 04:59:48,194 INFO  L343   CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places.
[2021-03-25 04:59:48,194 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 04:59:48,194 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 12 transitions, 46 flow
[2021-03-25 04:59:48,194 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 12 transitions, 46 flow
[2021-03-25 04:59:48,195 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 23 places, 12 transitions, 46 flow
[2021-03-25 04:59:48,197 INFO  L129       PetriNetUnfolder]: 0/12 cut-off events.
[2021-03-25 04:59:48,197 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2021-03-25 04:59:48,197 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 30 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. 
[2021-03-25 04:59:48,197 INFO  L142        LiptonReduction]: Number of co-enabled transitions 24
[2021-03-25 04:59:48,243 INFO  L154        LiptonReduction]: Checked pairs total: 26
[2021-03-25 04:59:48,243 INFO  L156        LiptonReduction]: Total number of compositions: 2
[2021-03-25 04:59:48,243 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49
[2021-03-25 04:59:48,244 INFO  L480      AbstractCegarLoop]: Abstraction has has 21 places, 10 transitions, 42 flow
[2021-03-25 04:59:48,244 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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)
[2021-03-25 04:59:48,244 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 04:59:48,245 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 04:59:48,245 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-03-25 04:59:48,245 INFO  L428      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 04:59:48,245 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 04:59:48,245 INFO  L82        PathProgramCache]: Analyzing trace with hash 1386547245, now seen corresponding path program 1 times
[2021-03-25 04:59:48,245 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 04:59:48,246 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422099848]
[2021-03-25 04:59:48,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 04:59:48,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 04:59:48,324 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:48,324 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 04:59:48,327 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 04:59:48,328 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 04:59:48,337 INFO  L142       QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size
[2021-03-25 04:59:48,339 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-03-25 04:59:48,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 04:59:48,346 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422099848]
[2021-03-25 04:59:48,346 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 04:59:48,346 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-25 04:59:48,346 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585287091]
[2021-03-25 04:59:48,347 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-03-25 04:59:48,347 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 04:59:48,348 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-03-25 04:59:48,349 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-03-25 04:59:48,350 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 74 out of 100
[2021-03-25 04:59:48,351 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 10 transitions, 42 flow. Second operand  has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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)
[2021-03-25 04:59:48,351 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 04:59:48,351 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 100
[2021-03-25 04:59:48,351 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 04:59:48,363 INFO  L129       PetriNetUnfolder]: 0/9 cut-off events.
[2021-03-25 04:59:48,363 INFO  L130       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2021-03-25 04:59:48,364 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 28 conditions, 9 events. 0/9 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. 
[2021-03-25 04:59:48,364 INFO  L132   encePairwiseOnDemand]: 97/100 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions.
[2021-03-25 04:59:48,364 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 9 transitions, 40 flow
[2021-03-25 04:59:48,364 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-03-25 04:59:48,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2021-03-25 04:59:48,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions.
[2021-03-25 04:59:48,372 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.75
[2021-03-25 04:59:48,372 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 300 transitions.
[2021-03-25 04:59:48,372 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 300 transitions.
[2021-03-25 04:59:48,373 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 04:59:48,374 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 300 transitions.
[2021-03-25 04:59:48,376 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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)
[2021-03-25 04:59:48,378 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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)
[2021-03-25 04:59:48,378 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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)
[2021-03-25 04:59:48,378 INFO  L185             Difference]: Start difference. First operand has 21 places, 10 transitions, 42 flow. Second operand 4 states and 300 transitions.
[2021-03-25 04:59:48,378 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 9 transitions, 40 flow
[2021-03-25 04:59:48,379 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 9 transitions, 28 flow, removed 0 selfloop flow, removed 6 redundant places.
[2021-03-25 04:59:48,379 INFO  L241             Difference]: Finished difference. Result has 17 places, 0 transitions, 0 flow
[2021-03-25 04:59:48,379 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=17, PETRI_TRANSITIONS=0}
[2021-03-25 04:59:48,379 INFO  L343   CegarLoopForPetriNet]: 22 programPoint places, -5 predicate places.
[2021-03-25 04:59:48,379 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 04:59:48,380 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 0 transitions, 0 flow
[2021-03-25 04:59:48,381 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 0 transitions, 0 flow
[2021-03-25 04:59:48,381 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow
[2021-03-25 04:59:48,381 INFO  L129       PetriNetUnfolder]: 0/0 cut-off events.
[2021-03-25 04:59:48,381 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 04:59:48,381 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. 
[2021-03-25 04:59:48,381 INFO  L142        LiptonReduction]: Number of co-enabled transitions 0
[2021-03-25 04:59:48,381 INFO  L154        LiptonReduction]: Checked pairs total: 0
[2021-03-25 04:59:48,381 INFO  L156        LiptonReduction]: Total number of compositions: 0
[2021-03-25 04:59:48,381 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2
[2021-03-25 04:59:48,383 INFO  L480      AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow
[2021-03-25 04:59:48,384 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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)
[2021-03-25 04:59:48,384 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-03-25 04:59:48,387 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:59:48 BasicIcfg
[2021-03-25 04:59:48,387 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-03-25 04:59:48,391 INFO  L168              Benchmark]: Toolchain (without parser) took 3653.69 ms. Allocated memory is still 371.2 MB. Free memory was 334.5 MB in the beginning and 150.7 MB in the end (delta: 183.8 MB). Peak memory consumption was 188.9 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,392 INFO  L168              Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 371.2 MB. Free memory was 352.5 MB in the beginning and 352.4 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,392 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 436.10 ms. Allocated memory is still 371.2 MB. Free memory was 334.3 MB in the beginning and 335.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,393 INFO  L168              Benchmark]: Boogie Procedure Inliner took 56.06 ms. Allocated memory is still 371.2 MB. Free memory was 335.4 MB in the beginning and 332.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,393 INFO  L168              Benchmark]: Boogie Preprocessor took 31.18 ms. Allocated memory is still 371.2 MB. Free memory was 332.7 MB in the beginning and 331.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,395 INFO  L168              Benchmark]: RCFGBuilder took 428.99 ms. Allocated memory is still 371.2 MB. Free memory was 331.2 MB in the beginning and 311.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,396 INFO  L168              Benchmark]: TraceAbstraction took 2690.89 ms. Allocated memory is still 371.2 MB. Free memory was 310.3 MB in the beginning and 150.7 MB in the end (delta: 159.6 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.0 GB.
[2021-03-25 04:59:48,400 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.44 ms. Allocated memory is still 371.2 MB. Free memory was 352.5 MB in the beginning and 352.4 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 436.10 ms. Allocated memory is still 371.2 MB. Free memory was 334.3 MB in the beginning and 335.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 56.06 ms. Allocated memory is still 371.2 MB. Free memory was 335.4 MB in the beginning and 332.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 31.18 ms. Allocated memory is still 371.2 MB. Free memory was 332.7 MB in the beginning and 331.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * RCFGBuilder took 428.99 ms. Allocated memory is still 371.2 MB. Free memory was 331.2 MB in the beginning and 311.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 2690.89 ms. Allocated memory is still 371.2 MB. Free memory was 310.3 MB in the beginning and 150.7 MB in the end (delta: 159.6 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1177.4ms, 55 PlacesBefore, 22 PlacesAfterwards, 49 TransitionsBefore, 15 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 34 TotalNumberOfCompositions, 608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 422, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 229, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 422, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 229, unknown conditional: 0, unknown unconditional: 229] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 692.2ms, 23 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 12 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 71, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 48.9ms, 23 PlacesBefore, 21 PlacesAfterwards, 12 TransitionsBefore, 10 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 0.7ms, 17 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2
  - PositiveResult [Line: 18]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2602.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 157.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1244.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 9 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 11, 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: 10.3ms SsaConstructionTime, 109.4ms SatisfiabilityAnalysisTime, 200.3ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
Received shutdown request...