/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i


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


This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788
[2021-06-01 16:32:36,714 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-06-01 16:32:36,755 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-06-01 16:32:36,758 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2021-06-01 16:32:36,777 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-06-01 16:32:36,778 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-06-01 16:32:36,780 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-06-01 16:32:36,781 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-06-01 16:32:36,783 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-06-01 16:32:36,788 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-06-01 16:32:36,790 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-06-01 16:32:36,791 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-01 16:32:36,792 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-06-01 16:32:36,794 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2021-06-01 16:32:36,806 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-06-01 16:32:36,807 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-06-01 16:32:36,808 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-06-01 16:32:36,812 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-FA-NoLbe.epf
[2021-06-01 16:32:36,848 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-06-01 16:32:36,849 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-01 16:32:36,849 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-01 16:32:36,849 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-01 16:32:36,852 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-01 16:32:36,852 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-06-01 16:32:36,852 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-06-01 16:32:36,852 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-01 16:32:36,853 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-06-01 16:32:36,853 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-06-01 16:32:36,853 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-06-01 16:32:36,854 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-06-01 16:32:36,854 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 16:32:36,855 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-01 16:32:36,855 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-06-01 16:32:36,856 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-01 16:32:36,856 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-06-01 16:32:36,856 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-01 16:32:36,856 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-01 16:32:37,142 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-01 16:32:37,162 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-01 16:32:37,165 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-01 16:32:37,166 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-06-01 16:32:37,167 INFO  L275        PluginConnector]: CDTParser initialized
[2021-06-01 16:32:37,168 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i
[2021-06-01 16:32:37,233 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a288ad45/d567c5d7737546c69359fbebf8e6de71/FLAGa0f0fd84e
[2021-06-01 16:32:37,708 INFO  L306              CDTParser]: Found 1 translation units.
[2021-06-01 16:32:37,708 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i
[2021-06-01 16:32:37,724 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a288ad45/d567c5d7737546c69359fbebf8e6de71/FLAGa0f0fd84e
[2021-06-01 16:32:37,999 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a288ad45/d567c5d7737546c69359fbebf8e6de71
[2021-06-01 16:32:38,001 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-01 16:32:38,003 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-06-01 16:32:38,007 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-06-01 16:32:38,007 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-06-01 16:32:38,010 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-06-01 16:32:38,011 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,012 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a83ea24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38, skipping insertion in model container
[2021-06-01 16:32:38,012 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,017 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-06-01 16:32:38,070 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-06-01 16:32:38,236 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i[949,962]
[2021-06-01 16:32:38,381 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-06-01 16:32:38,387 INFO  L203         MainTranslator]: Completed pre-run
[2021-06-01 16:32:38,396 WARN  L224   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.opt.i[949,962]
[2021-06-01 16:32:38,417 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-06-01 16:32:38,475 INFO  L208         MainTranslator]: Completed translation
[2021-06-01 16:32:38,475 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38 WrapperNode
[2021-06-01 16:32:38,475 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-06-01 16:32:38,476 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-01 16:32:38,476 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-01 16:32:38,477 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-01 16:32:38,482 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,493 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,509 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-01 16:32:38,510 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-01 16:32:38,510 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-01 16:32:38,510 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-06-01 16:32:38,516 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,516 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,518 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,519 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,523 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,524 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,526 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (1/1) ...
[2021-06-01 16:32:38,528 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-01 16:32:38,529 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-01 16:32:38,529 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-06-01 16:32:38,529 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-06-01 16:32:38,529 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (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
[2021-06-01 16:32:38,596 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-06-01 16:32:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-06-01 16:32:38,597 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-06-01 16:32:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-06-01 16:32:38,598 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2021-06-01 16:32:38,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2021-06-01 16:32:38,600 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2021-06-01 16:32:38,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2021-06-01 16:32:38,600 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2021-06-01 16:32:38,600 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2021-06-01 16:32:38,600 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-06-01 16:32:38,600 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-06-01 16:32:38,600 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-01 16:32:38,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-01 16:32:38,602 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-01 16:32:38,954 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-01 16:32:38,955 INFO  L299             CfgBuilder]: Removed 8 assume(true) statements.
[2021-06-01 16:32:38,956 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:32:38 BoogieIcfgContainer
[2021-06-01 16:32:38,956 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-01 16:32:38,958 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-01 16:32:38,958 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-06-01 16:32:38,960 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-06-01 16:32:38,960 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.06 04:32:38" (1/3) ...
[2021-06-01 16:32:38,961 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7450ce65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:32:38, skipping insertion in model container
[2021-06-01 16:32:38,961 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.06 04:32:38" (2/3) ...
[2021-06-01 16:32:38,961 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7450ce65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 04:32:38, skipping insertion in model container
[2021-06-01 16:32:38,961 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 04:32:38" (3/3) ...
[2021-06-01 16:32:38,962 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe020_tso.opt.i
[2021-06-01 16:32:38,967 WARN  L148   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-01 16:32:38,967 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-01 16:32:38,967 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-01 16:32:38,968 INFO  L471   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-01 16:32:38,992 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,993 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,993 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,993 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,993 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,994 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,994 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,994 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,994 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,994 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,995 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,995 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,995 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,995 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,995 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,996 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,997 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,997 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,997 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,997 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,997 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,998 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,999 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,999 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,999 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:38,999 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,001 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,001 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,002 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,002 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,005 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,006 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,006 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,006 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,008 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,008 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,008 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,008 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-06-01 16:32:39,009 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-06-01 16:32:39,025 INFO  L255      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-06-01 16:32:39,039 INFO  L378      AbstractCegarLoop]: Interprodecural is true
[2021-06-01 16:32:39,039 INFO  L379      AbstractCegarLoop]: Hoare is false
[2021-06-01 16:32:39,039 INFO  L380      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-01 16:32:39,039 INFO  L381      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-01 16:32:39,039 INFO  L382      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-01 16:32:39,039 INFO  L383      AbstractCegarLoop]: Difference is false
[2021-06-01 16:32:39,039 INFO  L384      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-01 16:32:39,040 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-01 16:32:39,048 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 82 transitions, 179 flow
[2021-06-01 16:32:39,530 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 8008 states, 8006 states have (on average 3.5367224581563828) internal successors, (28315), 8007 states have internal predecessors, (28315), 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)
[2021-06-01 16:32:39,572 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8008 states, 8006 states have (on average 3.5367224581563828) internal successors, (28315), 8007 states have internal predecessors, (28315), 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)
[2021-06-01 16:32:39,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2021-06-01 16:32:39,617 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:39,617 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:39,618 INFO  L430      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:39,625 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:39,626 INFO  L82        PathProgramCache]: Analyzing trace with hash 1333187383, now seen corresponding path program 1 times
[2021-06-01 16:32:39,633 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:39,633 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695996672]
[2021-06-01 16:32:39,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:39,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:39,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:39,944 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:39,944 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695996672]
[2021-06-01 16:32:39,945 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695996672] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:39,945 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:39,945 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-06-01 16:32:39,946 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769377625]
[2021-06-01 16:32:39,949 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-01 16:32:39,949 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:39,959 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-01 16:32:39,959 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-06-01 16:32:40,002 INFO  L87              Difference]: Start difference. First operand  has 8008 states, 8006 states have (on average 3.5367224581563828) internal successors, (28315), 8007 states have internal predecessors, (28315), 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) Second operand  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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)
[2021-06-01 16:32:40,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:40,391 INFO  L93              Difference]: Finished difference Result 11254 states and 38820 transitions.
[2021-06-01 16:32:40,391 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-06-01 16:32:40,393 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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) Word has length 48
[2021-06-01 16:32:40,393 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:40,441 INFO  L225             Difference]: With dead ends: 11254
[2021-06-01 16:32:40,441 INFO  L226             Difference]: Without dead ends: 4264
[2021-06-01 16:32:40,443 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 126.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:32:40,490 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4264 states.
[2021-06-01 16:32:40,633 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4264 to 4264.
[2021-06-01 16:32:40,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4264 states, 4263 states have (on average 3.373915083274689) internal successors, (14383), 4263 states have internal predecessors, (14383), 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)
[2021-06-01 16:32:40,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 14383 transitions.
[2021-06-01 16:32:40,671 INFO  L78                 Accepts]: Start accepts. Automaton has 4264 states and 14383 transitions. Word has length 48
[2021-06-01 16:32:40,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:40,677 INFO  L482      AbstractCegarLoop]: Abstraction has 4264 states and 14383 transitions.
[2021-06-01 16:32:40,678 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 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)
[2021-06-01 16:32:40,678 INFO  L276                IsEmpty]: Start isEmpty. Operand 4264 states and 14383 transitions.
[2021-06-01 16:32:40,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2021-06-01 16:32:40,691 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:40,691 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:40,692 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-01 16:32:40,692 INFO  L430      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:40,696 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:40,696 INFO  L82        PathProgramCache]: Analyzing trace with hash 622542102, now seen corresponding path program 1 times
[2021-06-01 16:32:40,696 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:40,697 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947781518]
[2021-06-01 16:32:40,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:40,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:40,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:40,908 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:40,908 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947781518]
[2021-06-01 16:32:40,908 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947781518] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:40,908 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:40,908 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:32:40,908 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763518740]
[2021-06-01 16:32:40,910 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:32:40,910 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:40,911 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:32:40,911 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:32:40,911 INFO  L87              Difference]: Start difference. First operand 4264 states and 14383 transitions. Second operand  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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)
[2021-06-01 16:32:41,245 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:41,245 INFO  L93              Difference]: Finished difference Result 6808 states and 22581 transitions.
[2021-06-01 16:32:41,246 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2021-06-01 16:32:41,246 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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) Word has length 50
[2021-06-01 16:32:41,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:41,310 INFO  L225             Difference]: With dead ends: 6808
[2021-06-01 16:32:41,310 INFO  L226             Difference]: Without dead ends: 4528
[2021-06-01 16:32:41,310 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 218.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210
[2021-06-01 16:32:41,329 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4528 states.
[2021-06-01 16:32:41,429 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 3808.
[2021-06-01 16:32:41,449 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3808 states, 3807 states have (on average 3.287365379563961) internal successors, (12515), 3807 states have internal predecessors, (12515), 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)
[2021-06-01 16:32:41,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 12515 transitions.
[2021-06-01 16:32:41,466 INFO  L78                 Accepts]: Start accepts. Automaton has 3808 states and 12515 transitions. Word has length 50
[2021-06-01 16:32:41,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:41,467 INFO  L482      AbstractCegarLoop]: Abstraction has 3808 states and 12515 transitions.
[2021-06-01 16:32:41,467 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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)
[2021-06-01 16:32:41,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 3808 states and 12515 transitions.
[2021-06-01 16:32:41,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-06-01 16:32:41,479 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:41,479 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:41,480 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-06-01 16:32:41,480 INFO  L430      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:41,487 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:41,487 INFO  L82        PathProgramCache]: Analyzing trace with hash -1509932971, now seen corresponding path program 1 times
[2021-06-01 16:32:41,488 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:41,488 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097351361]
[2021-06-01 16:32:41,488 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:41,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:41,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:41,607 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:41,607 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097351361]
[2021-06-01 16:32:41,607 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097351361] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:41,608 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:41,608 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:32:41,608 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361504144]
[2021-06-01 16:32:41,609 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:32:41,609 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:41,609 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:32:41,609 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:32:41,610 INFO  L87              Difference]: Start difference. First operand 3808 states and 12515 transitions. Second operand  has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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)
[2021-06-01 16:32:41,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:41,814 INFO  L93              Difference]: Finished difference Result 5356 states and 17475 transitions.
[2021-06-01 16:32:41,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2021-06-01 16:32:41,815 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) Word has length 52
[2021-06-01 16:32:41,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:41,831 INFO  L225             Difference]: With dead ends: 5356
[2021-06-01 16:32:41,831 INFO  L226             Difference]: Without dead ends: 2884
[2021-06-01 16:32:41,832 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2021-06-01 16:32:41,841 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2884 states.
[2021-06-01 16:32:41,903 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2884.
[2021-06-01 16:32:41,908 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2884 states, 2883 states have (on average 3.183142559833507) internal successors, (9177), 2883 states have internal predecessors, (9177), 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)
[2021-06-01 16:32:41,921 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 9177 transitions.
[2021-06-01 16:32:41,921 INFO  L78                 Accepts]: Start accepts. Automaton has 2884 states and 9177 transitions. Word has length 52
[2021-06-01 16:32:41,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:41,923 INFO  L482      AbstractCegarLoop]: Abstraction has 2884 states and 9177 transitions.
[2021-06-01 16:32:41,923 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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)
[2021-06-01 16:32:41,923 INFO  L276                IsEmpty]: Start isEmpty. Operand 2884 states and 9177 transitions.
[2021-06-01 16:32:41,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-06-01 16:32:41,934 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:41,935 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:41,935 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-06-01 16:32:41,935 INFO  L430      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:41,936 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:41,936 INFO  L82        PathProgramCache]: Analyzing trace with hash 1374435990, now seen corresponding path program 1 times
[2021-06-01 16:32:41,937 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:41,937 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973944568]
[2021-06-01 16:32:41,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:41,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:42,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:42,078 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:42,078 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973944568]
[2021-06-01 16:32:42,079 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973944568] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:42,079 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:42,079 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-06-01 16:32:42,079 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604288948]
[2021-06-01 16:32:42,080 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-01 16:32:42,080 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:42,081 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-01 16:32:42,084 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-06-01 16:32:42,084 INFO  L87              Difference]: Start difference. First operand 2884 states and 9177 transitions. Second operand  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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)
[2021-06-01 16:32:42,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:42,196 INFO  L93              Difference]: Finished difference Result 3655 states and 11511 transitions.
[2021-06-01 16:32:42,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-06-01 16:32:42,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54
[2021-06-01 16:32:42,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:42,226 INFO  L225             Difference]: With dead ends: 3655
[2021-06-01 16:32:42,226 INFO  L226             Difference]: Without dead ends: 2695
[2021-06-01 16:32:42,226 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:32:42,237 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2695 states.
[2021-06-01 16:32:42,342 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2695.
[2021-06-01 16:32:42,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2695 states, 2694 states have (on average 3.1425389755011137) internal successors, (8466), 2694 states have internal predecessors, (8466), 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)
[2021-06-01 16:32:42,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 8466 transitions.
[2021-06-01 16:32:42,356 INFO  L78                 Accepts]: Start accepts. Automaton has 2695 states and 8466 transitions. Word has length 54
[2021-06-01 16:32:42,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:42,357 INFO  L482      AbstractCegarLoop]: Abstraction has 2695 states and 8466 transitions.
[2021-06-01 16:32:42,357 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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)
[2021-06-01 16:32:42,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 2695 states and 8466 transitions.
[2021-06-01 16:32:42,364 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2021-06-01 16:32:42,364 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:42,364 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:42,365 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-06-01 16:32:42,368 INFO  L430      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:42,370 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:42,370 INFO  L82        PathProgramCache]: Analyzing trace with hash 1728353214, now seen corresponding path program 1 times
[2021-06-01 16:32:42,370 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:42,371 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553092072]
[2021-06-01 16:32:42,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:42,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:42,506 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:42,506 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:42,506 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553092072]
[2021-06-01 16:32:42,506 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553092072] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:42,506 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:42,506 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:32:42,507 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754714367]
[2021-06-01 16:32:42,508 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:32:42,508 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:42,508 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:32:42,508 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:32:42,509 INFO  L87              Difference]: Start difference. First operand 2695 states and 8466 transitions. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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)
[2021-06-01 16:32:42,629 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:42,630 INFO  L93              Difference]: Finished difference Result 2929 states and 8991 transitions.
[2021-06-01 16:32:42,630 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2021-06-01 16:32:42,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) Word has length 55
[2021-06-01 16:32:42,632 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:42,639 INFO  L225             Difference]: With dead ends: 2929
[2021-06-01 16:32:42,639 INFO  L226             Difference]: Without dead ends: 2101
[2021-06-01 16:32:42,640 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2021-06-01 16:32:42,646 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2101 states.
[2021-06-01 16:32:42,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 2101.
[2021-06-01 16:32:42,685 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2101 states, 2100 states have (on average 3.0228571428571427) internal successors, (6348), 2100 states have internal predecessors, (6348), 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)
[2021-06-01 16:32:42,691 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2101 states to 2101 states and 6348 transitions.
[2021-06-01 16:32:42,692 INFO  L78                 Accepts]: Start accepts. Automaton has 2101 states and 6348 transitions. Word has length 55
[2021-06-01 16:32:42,692 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:42,692 INFO  L482      AbstractCegarLoop]: Abstraction has 2101 states and 6348 transitions.
[2021-06-01 16:32:42,692 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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)
[2021-06-01 16:32:42,692 INFO  L276                IsEmpty]: Start isEmpty. Operand 2101 states and 6348 transitions.
[2021-06-01 16:32:42,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2021-06-01 16:32:42,697 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:42,697 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:42,697 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-06-01 16:32:42,697 INFO  L430      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:42,698 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:42,698 INFO  L82        PathProgramCache]: Analyzing trace with hash -1012911809, now seen corresponding path program 1 times
[2021-06-01 16:32:42,698 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:42,698 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443612142]
[2021-06-01 16:32:42,698 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:42,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:42,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:42,830 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:42,830 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443612142]
[2021-06-01 16:32:42,830 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443612142] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:42,830 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:42,830 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 16:32:42,831 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653977633]
[2021-06-01 16:32:42,831 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 16:32:42,831 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:42,832 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 16:32:42,834 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 16:32:42,834 INFO  L87              Difference]: Start difference. First operand 2101 states and 6348 transitions. Second operand  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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)
[2021-06-01 16:32:42,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:42,976 INFO  L93              Difference]: Finished difference Result 1849 states and 5454 transitions.
[2021-06-01 16:32:42,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-06-01 16:32:42,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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) Word has length 57
[2021-06-01 16:32:42,978 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:42,980 INFO  L225             Difference]: With dead ends: 1849
[2021-06-01 16:32:42,980 INFO  L226             Difference]: Without dead ends: 993
[2021-06-01 16:32:42,981 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 159.0ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2021-06-01 16:32:42,984 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 993 states.
[2021-06-01 16:32:43,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 945.
[2021-06-01 16:32:43,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 945 states, 944 states have (on average 2.8739406779661016) internal successors, (2713), 944 states have internal predecessors, (2713), 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)
[2021-06-01 16:32:43,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 2713 transitions.
[2021-06-01 16:32:43,006 INFO  L78                 Accepts]: Start accepts. Automaton has 945 states and 2713 transitions. Word has length 57
[2021-06-01 16:32:43,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:43,006 INFO  L482      AbstractCegarLoop]: Abstraction has 945 states and 2713 transitions.
[2021-06-01 16:32:43,007 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 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)
[2021-06-01 16:32:43,007 INFO  L276                IsEmpty]: Start isEmpty. Operand 945 states and 2713 transitions.
[2021-06-01 16:32:43,009 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2021-06-01 16:32:43,009 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:43,010 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:43,010 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-06-01 16:32:43,010 INFO  L430      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:43,010 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:43,010 INFO  L82        PathProgramCache]: Analyzing trace with hash 1781698532, now seen corresponding path program 1 times
[2021-06-01 16:32:43,011 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:43,011 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616943310]
[2021-06-01 16:32:43,011 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:43,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:43,116 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:43,116 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:43,117 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616943310]
[2021-06-01 16:32:43,119 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616943310] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:43,119 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:43,120 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:32:43,120 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774380173]
[2021-06-01 16:32:43,120 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:32:43,120 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:43,121 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:32:43,121 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:32:43,121 INFO  L87              Difference]: Start difference. First operand 945 states and 2713 transitions. Second operand  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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)
[2021-06-01 16:32:43,182 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:43,182 INFO  L93              Difference]: Finished difference Result 1428 states and 4154 transitions.
[2021-06-01 16:32:43,183 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-06-01 16:32:43,183 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) Word has length 59
[2021-06-01 16:32:43,183 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:43,185 INFO  L225             Difference]: With dead ends: 1428
[2021-06-01 16:32:43,185 INFO  L226             Difference]: Without dead ends: 848
[2021-06-01 16:32:43,186 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 68.2ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-06-01 16:32:43,189 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 848 states.
[2021-06-01 16:32:43,201 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848.
[2021-06-01 16:32:43,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 848 states, 847 states have (on average 2.855962219598583) internal successors, (2419), 847 states have internal predecessors, (2419), 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)
[2021-06-01 16:32:43,204 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 2419 transitions.
[2021-06-01 16:32:43,204 INFO  L78                 Accepts]: Start accepts. Automaton has 848 states and 2419 transitions. Word has length 59
[2021-06-01 16:32:43,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:43,205 INFO  L482      AbstractCegarLoop]: Abstraction has 848 states and 2419 transitions.
[2021-06-01 16:32:43,205 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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)
[2021-06-01 16:32:43,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 848 states and 2419 transitions.
[2021-06-01 16:32:43,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2021-06-01 16:32:43,207 INFO  L546         BasicCegarLoop]: Found error trace
[2021-06-01 16:32:43,208 INFO  L554         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 16:32:43,208 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-06-01 16:32:43,208 INFO  L430      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-06-01 16:32:43,208 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 16:32:43,208 INFO  L82        PathProgramCache]: Analyzing trace with hash -2085890332, now seen corresponding path program 2 times
[2021-06-01 16:32:43,209 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 16:32:43,209 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783058509]
[2021-06-01 16:32:43,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 16:32:43,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 16:32:43,296 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 16:32:43,296 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 16:32:43,296 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783058509]
[2021-06-01 16:32:43,296 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783058509] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 16:32:43,297 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 16:32:43,297 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-06-01 16:32:43,299 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218956726]
[2021-06-01 16:32:43,299 INFO  L462      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 16:32:43,299 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 16:32:43,300 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 16:32:43,300 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-06-01 16:32:43,300 INFO  L87              Difference]: Start difference. First operand 848 states and 2419 transitions. Second operand  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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)
[2021-06-01 16:32:43,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 16:32:43,386 INFO  L93              Difference]: Finished difference Result 794 states and 2257 transitions.
[2021-06-01 16:32:43,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-06-01 16:32:43,386 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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) Word has length 59
[2021-06-01 16:32:43,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 16:32:43,387 INFO  L225             Difference]: With dead ends: 794
[2021-06-01 16:32:43,387 INFO  L226             Difference]: Without dead ends: 0
[2021-06-01 16:32:43,387 INFO  L810         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 95.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2021-06-01 16:32:43,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-06-01 16:32:43,388 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-06-01 16:32:43,388 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2021-06-01 16:32:43,388 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-06-01 16:32:43,388 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59
[2021-06-01 16:32:43,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-06-01 16:32:43,388 INFO  L482      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-06-01 16:32:43,388 INFO  L483      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 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)
[2021-06-01 16:32:43,388 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-06-01 16:32:43,389 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2021-06-01 16:32:43,389 WARN  L519      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-06-01 16:32:43,390 INFO  L247   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-06-01 16:32:43,393 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 04:32:43 BasicIcfg
[2021-06-01 16:32:43,393 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-06-01 16:32:43,394 INFO  L168              Benchmark]: Toolchain (without parser) took 5390.23 ms. Allocated memory was 333.4 MB in the beginning and 719.3 MB in the end (delta: 385.9 MB). Free memory was 295.1 MB in the beginning and 488.9 MB in the end (delta: -193.8 MB). Peak memory consumption was 193.8 MB. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,394 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 333.4 MB. Free memory was 313.3 MB in the beginning and 313.2 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,398 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 469.14 ms. Allocated memory is still 333.4 MB. Free memory was 294.9 MB in the beginning and 294.0 MB in the end (delta: 931.7 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,399 INFO  L168              Benchmark]: Boogie Procedure Inliner took 32.74 ms. Allocated memory is still 333.4 MB. Free memory was 294.0 MB in the beginning and 291.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,399 INFO  L168              Benchmark]: Boogie Preprocessor took 18.46 ms. Allocated memory is still 333.4 MB. Free memory was 291.9 MB in the beginning and 290.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,400 INFO  L168              Benchmark]: RCFGBuilder took 427.61 ms. Allocated memory is still 333.4 MB. Free memory was 290.9 MB in the beginning and 265.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,400 INFO  L168              Benchmark]: TraceAbstraction took 4435.28 ms. Allocated memory was 333.4 MB in the beginning and 719.3 MB in the end (delta: 385.9 MB). Free memory was 265.7 MB in the beginning and 488.9 MB in the end (delta: -223.2 MB). Peak memory consumption was 165.8 MB. Max. memory is 16.0 GB.
[2021-06-01 16:32:43,405 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 333.4 MB. Free memory was 313.3 MB in the beginning and 313.2 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 469.14 ms. Allocated memory is still 333.4 MB. Free memory was 294.9 MB in the beginning and 294.0 MB in the end (delta: 931.7 kB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 32.74 ms. Allocated memory is still 333.4 MB. Free memory was 294.0 MB in the beginning and 291.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 18.46 ms. Allocated memory is still 333.4 MB. Free memory was 291.9 MB in the beginning and 290.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB.
 * RCFGBuilder took 427.61 ms. Allocated memory is still 333.4 MB. Free memory was 290.9 MB in the beginning and 265.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 4435.28 ms. Allocated memory was 333.4 MB in the beginning and 719.3 MB in the end (delta: 385.9 MB). Free memory was 265.7 MB in the beginning and 488.9 MB in the end (delta: -223.2 MB). Peak memory consumption was 165.8 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4352.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 138.3ms, AutomataDifference: 1696.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 490.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 763 SDtfs, 1244 SDslu, 2543 SDs, 0 SdLazy, 311 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 306.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1016.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8008occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 687.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 768 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.6ms SsaConstructionTime, 190.8ms SatisfiabilityAnalysisTime, 903.9ms InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 426 ConstructedInterpolants, 0 QuantifiedInterpolants, 1544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...