/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i


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


This is Ultimate 0.2.0-60729f1
[2020-11-12 06:14:51,264 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-12 06:14:51,267 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-12 06:14:51,306 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-12 06:14:51,306 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-12 06:14:51,308 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-12 06:14:51,310 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-11-12 06:14:51,315 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2020-11-12 06:14:51,324 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-12 06:14:51,325 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-12 06:14:51,326 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-12 06:14:51,329 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-12 06:14:51,331 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-12 06:14:51,333 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-12 06:14:51,336 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-12 06:14:51,341 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-12 06:14:51,342 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-12 06:14:51,348 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-12 06:14:51,351 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-12 06:14:51,351 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-12 06:14:51,352 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-12 06:14:51,357 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-12 06:14:51,359 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-12 06:14:51,359 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-12 06:14:51,360 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
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[2020-11-12 06:14:51,364 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-12 06:14:51,365 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-11-12 06:14:51,367 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-11-12 06:14:51,370 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-12 06:14:51,372 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-Delay.epf
[2020-11-12 06:14:51,430 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-12 06:14:51,430 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-12 06:14:51,434 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-12 06:14:51,434 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-12 06:14:51,435 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-11-12 06:14:51,435 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-12 06:14:51,435 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-11-12 06:14:51,435 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-12 06:14:51,435 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-11-12 06:14:51,436 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-12 06:14:51,437 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-11-12 06:14:51,437 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-12 06:14:51,437 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-11-12 06:14:51,437 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-11-12 06:14:51,438 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-12 06:14:51,438 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-12 06:14:51,438 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-11-12 06:14:51,438 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-12 06:14:51,439 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-11-12 06:14:51,439 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-11-12 06:14:51,439 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-11-12 06:14:51,439 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-12 06:14:51,439 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-12 06:14:51,440 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-11-12 06:14:51,440 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-12 06:14:51,440 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-11-12 06:14:51,440 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-12 06:14:51,440 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2020-11-12 06:14:51,441 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-12 06:14:51,441 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-11-12 06:14:51,441 INFO  L138        SettingsManager]:  * Sleep set reduction in concurrent analysis=DELAY_SET
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-12 06:14:51,899 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-12 06:14:51,929 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-12 06:14:51,933 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-12 06:14:51,934 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-12 06:14:51,935 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-12 06:14:51,936 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i
[2020-11-12 06:14:52,015 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72/FLAGf9ab54cc7
[2020-11-12 06:14:52,738 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-12 06:14:52,738 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i
[2020-11-12 06:14:52,760 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72/FLAGf9ab54cc7
[2020-11-12 06:14:53,028 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3c76802f/6846f431a1194bdcb42b691cddfe5a72
[2020-11-12 06:14:53,033 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-12 06:14:53,041 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-11-12 06:14:53,045 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-12 06:14:53,046 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-12 06:14:53,050 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-12 06:14:53,051 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,056 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a20ebfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53, skipping insertion in model container
[2020-11-12 06:14:53,056 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,065 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-12 06:14:53,120 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-12 06:14:53,619 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-12 06:14:53,630 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-12 06:14:53,709 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-12 06:14:53,811 INFO  L208         MainTranslator]: Completed translation
[2020-11-12 06:14:53,812 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53 WrapperNode
[2020-11-12 06:14:53,812 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-12 06:14:53,814 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-12 06:14:53,814 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-12 06:14:53,814 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-12 06:14:53,823 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,840 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,865 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-12 06:14:53,866 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-12 06:14:53,866 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-12 06:14:53,866 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-12 06:14:53,877 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,877 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,881 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,881 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,888 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,890 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,893 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (1/1) ...
[2020-11-12 06:14:53,896 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-12 06:14:53,897 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-12 06:14:53,898 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-12 06:14:53,898 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-12 06:14:53,899 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (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
[2020-11-12 06:14:54,069 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-11-12 06:14:54,070 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-11-12 06:14:54,070 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-12 06:14:54,071 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-12 06:14:54,072 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-11-12 06:14:54,072 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-11-12 06:14:54,073 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-11-12 06:14:54,073 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-11-12 06:14:54,074 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-11-12 06:14:54,074 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-11-12 06:14:54,075 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-12 06:14:54,075 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-11-12 06:14:54,075 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-12 06:14:54,075 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-12 06:14:54,077 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-11-12 06:14:54,558 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-12 06:14:54,558 INFO  L298             CfgBuilder]: Removed 10 assume(true) statements.
[2020-11-12 06:14:54,560 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:54 BoogieIcfgContainer
[2020-11-12 06:14:54,561 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-12 06:14:54,562 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-12 06:14:54,563 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-11-12 06:14:54,566 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-11-12 06:14:54,566 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:14:53" (1/3) ...
[2020-11-12 06:14:54,567 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:54, skipping insertion in model container
[2020-11-12 06:14:54,567 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:14:53" (2/3) ...
[2020-11-12 06:14:54,568 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:14:54, skipping insertion in model container
[2020-11-12 06:14:54,568 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:14:54" (3/3) ...
[2020-11-12 06:14:54,570 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i
[2020-11-12 06:14:54,585 WARN  L168   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-11-12 06:14:54,586 INFO  L179   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-11-12 06:14:54,589 INFO  L191   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-12 06:14:54,590 INFO  L351   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-11-12 06:14:54,620 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,620 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,621 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,621 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,621 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,621 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,622 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,622 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,622 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,622 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,623 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,623 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,623 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,623 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,624 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,624 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,624 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,624 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,625 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,625 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,625 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,625 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,626 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,626 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,626 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,626 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,627 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,627 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,627 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,627 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,627 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,628 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,628 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,628 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,628 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,629 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,631 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,631 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,632 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,632 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,641 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,642 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,642 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,642 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,646 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,646 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,646 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,647 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-11-12 06:14:54,649 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-11-12 06:14:54,661 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-11-12 06:14:54,682 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-11-12 06:14:54,683 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-11-12 06:14:54,683 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-11-12 06:14:54,683 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-12 06:14:54,683 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-12 06:14:54,683 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-11-12 06:14:54,683 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-12 06:14:54,683 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-12 06:14:54,696 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 77 transitions, 169 flow
[2020-11-12 06:14:55,354 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 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)
[2020-11-12 06:14:55,957 WARN  L455         BasicCegarLoop]: Sleep Set Reduction Time: 599ms
[2020-11-12 06:14:55,990 WARN  L456         BasicCegarLoop]: Sleep set: input automaton  has 8475 states, 8473 states have (on average 3.5872772335654433) internal successors, (30395), 8474 states have internal predecessors, (30395), 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)
[2020-11-12 06:14:56,006 WARN  L457         BasicCegarLoop]: Sleep set: output automaton  has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 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)
[2020-11-12 06:14:56,023 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 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)
[2020-11-12 06:14:56,046 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-11-12 06:14:56,046 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:56,047 INFO  L494         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]
[2020-11-12 06:14:56,048 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:56,054 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:56,055 INFO  L82        PathProgramCache]: Analyzing trace with hash 161629245, now seen corresponding path program 1 times
[2020-11-12 06:14:56,066 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:56,066 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241866236]
[2020-11-12 06:14:56,067 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:56,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:56,497 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:56,497 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241866236]
[2020-11-12 06:14:56,498 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:56,499 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-12 06:14:56,500 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307489507]
[2020-11-12 06:14:56,503 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-12 06:14:56,503 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:56,519 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-12 06:14:56,520 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-11-12 06:14:56,532 INFO  L87              Difference]: Start difference. First operand  has 8475 states, 7837 states have (on average 1.3924971290034451) internal successors, (10913), 8474 states have internal predecessors, (10913), 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 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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)
[2020-11-12 06:14:56,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:56,829 INFO  L93              Difference]: Finished difference Result 11247 states and 13088 transitions.
[2020-11-12 06:14:56,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-11-12 06:14:56,831 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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 41
[2020-11-12 06:14:56,832 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:56,872 INFO  L225             Difference]: With dead ends: 11247
[2020-11-12 06:14:56,872 INFO  L226             Difference]: Without dead ends: 3856
[2020-11-12 06:14:56,874 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-11-12 06:14:56,932 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3856 states.
[2020-11-12 06:14:57,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3856.
[2020-11-12 06:14:57,114 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3856 states, 3604 states have (on average 1.451165371809101) internal successors, (5230), 3855 states have internal predecessors, (5230), 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)
[2020-11-12 06:14:57,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5230 transitions.
[2020-11-12 06:14:57,137 INFO  L78                 Accepts]: Start accepts. Automaton has 3856 states and 5230 transitions. Word has length 41
[2020-11-12 06:14:57,137 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:57,138 INFO  L481      AbstractCegarLoop]: Abstraction has 3856 states and 5230 transitions.
[2020-11-12 06:14:57,138 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 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)
[2020-11-12 06:14:57,138 INFO  L276                IsEmpty]: Start isEmpty. Operand 3856 states and 5230 transitions.
[2020-11-12 06:14:57,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-11-12 06:14:57,194 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:57,194 INFO  L494         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]
[2020-11-12 06:14:57,194 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-12 06:14:57,195 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:57,195 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:57,195 INFO  L82        PathProgramCache]: Analyzing trace with hash -2100618788, now seen corresponding path program 1 times
[2020-11-12 06:14:57,196 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:57,196 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640055241]
[2020-11-12 06:14:57,196 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:57,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:57,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:57,369 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640055241]
[2020-11-12 06:14:57,370 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:57,370 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-12 06:14:57,370 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780306356]
[2020-11-12 06:14:57,372 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-12 06:14:57,373 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:57,374 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-12 06:14:57,375 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-11-12 06:14:57,376 INFO  L87              Difference]: Start difference. First operand 3856 states and 5230 transitions. Second operand  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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)
[2020-11-12 06:14:57,547 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:57,547 INFO  L93              Difference]: Finished difference Result 4288 states and 5881 transitions.
[2020-11-12 06:14:57,547 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-11-12 06:14:57,548 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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 43
[2020-11-12 06:14:57,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:57,562 INFO  L225             Difference]: With dead ends: 4288
[2020-11-12 06:14:57,562 INFO  L226             Difference]: Without dead ends: 2820
[2020-11-12 06:14:57,563 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-11-12 06:14:57,578 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2820 states.
[2020-11-12 06:14:57,624 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2820.
[2020-11-12 06:14:57,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2820 states, 2640 states have (on average 1.4757575757575758) internal successors, (3896), 2819 states have internal predecessors, (3896), 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)
[2020-11-12 06:14:57,640 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 3896 transitions.
[2020-11-12 06:14:57,640 INFO  L78                 Accepts]: Start accepts. Automaton has 2820 states and 3896 transitions. Word has length 43
[2020-11-12 06:14:57,640 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:57,640 INFO  L481      AbstractCegarLoop]: Abstraction has 2820 states and 3896 transitions.
[2020-11-12 06:14:57,641 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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)
[2020-11-12 06:14:57,642 INFO  L276                IsEmpty]: Start isEmpty. Operand 2820 states and 3896 transitions.
[2020-11-12 06:14:57,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-12 06:14:57,647 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:57,647 INFO  L494         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]
[2020-11-12 06:14:57,648 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-11-12 06:14:57,648 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:57,649 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:57,649 INFO  L82        PathProgramCache]: Analyzing trace with hash -759115397, now seen corresponding path program 1 times
[2020-11-12 06:14:57,649 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:57,649 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730597685]
[2020-11-12 06:14:57,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:57,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:57,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:57,822 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730597685]
[2020-11-12 06:14:57,822 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:57,822 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-11-12 06:14:57,822 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60446091]
[2020-11-12 06:14:57,823 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-12 06:14:57,823 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:57,824 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-12 06:14:57,824 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-11-12 06:14:57,824 INFO  L87              Difference]: Start difference. First operand 2820 states and 3896 transitions. Second operand  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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)
[2020-11-12 06:14:57,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:57,994 INFO  L93              Difference]: Finished difference Result 4720 states and 6837 transitions.
[2020-11-12 06:14:57,995 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-11-12 06:14:57,995 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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 45
[2020-11-12 06:14:57,995 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:58,008 INFO  L225             Difference]: With dead ends: 4720
[2020-11-12 06:14:58,009 INFO  L226             Difference]: Without dead ends: 2700
[2020-11-12 06:14:58,009 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2020-11-12 06:14:58,023 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2700 states.
[2020-11-12 06:14:58,066 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700.
[2020-11-12 06:14:58,070 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2700 states, 2520 states have (on average 1.488888888888889) internal successors, (3752), 2699 states have internal predecessors, (3752), 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)
[2020-11-12 06:14:58,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3752 transitions.
[2020-11-12 06:14:58,079 INFO  L78                 Accepts]: Start accepts. Automaton has 2700 states and 3752 transitions. Word has length 45
[2020-11-12 06:14:58,079 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:58,079 INFO  L481      AbstractCegarLoop]: Abstraction has 2700 states and 3752 transitions.
[2020-11-12 06:14:58,079 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 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)
[2020-11-12 06:14:58,079 INFO  L276                IsEmpty]: Start isEmpty. Operand 2700 states and 3752 transitions.
[2020-11-12 06:14:58,084 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-12 06:14:58,084 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:58,084 INFO  L494         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]
[2020-11-12 06:14:58,084 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-11-12 06:14:58,085 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:58,085 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:58,085 INFO  L82        PathProgramCache]: Analyzing trace with hash -1088726909, now seen corresponding path program 2 times
[2020-11-12 06:14:58,086 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:58,086 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878661590]
[2020-11-12 06:14:58,086 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:58,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:58,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:58,208 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878661590]
[2020-11-12 06:14:58,209 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:58,209 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-12 06:14:58,209 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382681235]
[2020-11-12 06:14:58,209 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-12 06:14:58,210 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:58,210 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-12 06:14:58,211 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-11-12 06:14:58,211 INFO  L87              Difference]: Start difference. First operand 2700 states and 3752 transitions. Second operand  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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)
[2020-11-12 06:14:58,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:58,354 INFO  L93              Difference]: Finished difference Result 2940 states and 4127 transitions.
[2020-11-12 06:14:58,354 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-11-12 06:14:58,355 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45
[2020-11-12 06:14:58,355 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:58,366 INFO  L225             Difference]: With dead ends: 2940
[2020-11-12 06:14:58,366 INFO  L226             Difference]: Without dead ends: 2138
[2020-11-12 06:14:58,366 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-11-12 06:14:58,376 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2138 states.
[2020-11-12 06:14:58,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2138.
[2020-11-12 06:14:58,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2138 states, 1998 states have (on average 1.5015015015015014) internal successors, (3000), 2137 states have internal predecessors, (3000), 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)
[2020-11-12 06:14:58,431 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3000 transitions.
[2020-11-12 06:14:58,432 INFO  L78                 Accepts]: Start accepts. Automaton has 2138 states and 3000 transitions. Word has length 45
[2020-11-12 06:14:58,432 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:58,432 INFO  L481      AbstractCegarLoop]: Abstraction has 2138 states and 3000 transitions.
[2020-11-12 06:14:58,432 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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)
[2020-11-12 06:14:58,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 2138 states and 3000 transitions.
[2020-11-12 06:14:58,436 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-11-12 06:14:58,436 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:58,437 INFO  L494         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]
[2020-11-12 06:14:58,437 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-11-12 06:14:58,437 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:58,438 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:58,438 INFO  L82        PathProgramCache]: Analyzing trace with hash 380395389, now seen corresponding path program 1 times
[2020-11-12 06:14:58,439 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:58,439 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613972574]
[2020-11-12 06:14:58,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:58,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:58,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:58,606 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613972574]
[2020-11-12 06:14:58,607 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:58,607 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-11-12 06:14:58,607 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218388424]
[2020-11-12 06:14:58,608 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-12 06:14:58,608 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:58,609 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-12 06:14:58,609 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-11-12 06:14:58,609 INFO  L87              Difference]: Start difference. First operand 2138 states and 3000 transitions. Second operand  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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)
[2020-11-12 06:14:58,919 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:58,919 INFO  L93              Difference]: Finished difference Result 5022 states and 7584 transitions.
[2020-11-12 06:14:58,920 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2020-11-12 06:14:58,920 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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 46
[2020-11-12 06:14:58,920 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:58,931 INFO  L225             Difference]: With dead ends: 5022
[2020-11-12 06:14:58,931 INFO  L226             Difference]: Without dead ends: 2118
[2020-11-12 06:14:58,932 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272
[2020-11-12 06:14:58,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2118 states.
[2020-11-12 06:14:58,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1478.
[2020-11-12 06:14:58,984 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1478 states, 1378 states have (on average 1.5413642960812772) internal successors, (2124), 1477 states have internal predecessors, (2124), 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)
[2020-11-12 06:14:58,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2124 transitions.
[2020-11-12 06:14:58,990 INFO  L78                 Accepts]: Start accepts. Automaton has 1478 states and 2124 transitions. Word has length 46
[2020-11-12 06:14:58,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:58,990 INFO  L481      AbstractCegarLoop]: Abstraction has 1478 states and 2124 transitions.
[2020-11-12 06:14:58,991 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 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)
[2020-11-12 06:14:58,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 1478 states and 2124 transitions.
[2020-11-12 06:14:58,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-11-12 06:14:58,994 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:58,994 INFO  L494         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]
[2020-11-12 06:14:58,994 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-11-12 06:14:58,995 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:58,995 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:58,995 INFO  L82        PathProgramCache]: Analyzing trace with hash -52437086, now seen corresponding path program 1 times
[2020-11-12 06:14:58,996 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:58,996 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604455033]
[2020-11-12 06:14:58,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:59,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:59,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:59,114 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604455033]
[2020-11-12 06:14:59,114 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:59,114 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-11-12 06:14:59,115 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507391884]
[2020-11-12 06:14:59,115 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-12 06:14:59,115 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:59,116 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-12 06:14:59,116 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-11-12 06:14:59,117 INFO  L87              Difference]: Start difference. First operand 1478 states and 2124 transitions. Second operand  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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)
[2020-11-12 06:14:59,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:59,303 INFO  L93              Difference]: Finished difference Result 1814 states and 2627 transitions.
[2020-11-12 06:14:59,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-11-12 06:14:59,303 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47
[2020-11-12 06:14:59,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:59,308 INFO  L225             Difference]: With dead ends: 1814
[2020-11-12 06:14:59,308 INFO  L226             Difference]: Without dead ends: 774
[2020-11-12 06:14:59,308 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2020-11-12 06:14:59,312 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 774 states.
[2020-11-12 06:14:59,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 774.
[2020-11-12 06:14:59,327 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 774 states, 694 states have (on average 1.3602305475504324) internal successors, (944), 773 states have internal predecessors, (944), 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)
[2020-11-12 06:14:59,330 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 944 transitions.
[2020-11-12 06:14:59,330 INFO  L78                 Accepts]: Start accepts. Automaton has 774 states and 944 transitions. Word has length 47
[2020-11-12 06:14:59,331 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:59,331 INFO  L481      AbstractCegarLoop]: Abstraction has 774 states and 944 transitions.
[2020-11-12 06:14:59,331 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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)
[2020-11-12 06:14:59,331 INFO  L276                IsEmpty]: Start isEmpty. Operand 774 states and 944 transitions.
[2020-11-12 06:14:59,333 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-11-12 06:14:59,333 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:59,333 INFO  L494         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]
[2020-11-12 06:14:59,333 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-11-12 06:14:59,333 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:59,334 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:59,334 INFO  L82        PathProgramCache]: Analyzing trace with hash -274644542, now seen corresponding path program 1 times
[2020-11-12 06:14:59,334 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:59,335 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677554209]
[2020-11-12 06:14:59,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:59,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:59,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:59,451 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677554209]
[2020-11-12 06:14:59,452 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:59,452 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-12 06:14:59,452 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689146992]
[2020-11-12 06:14:59,453 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-12 06:14:59,453 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:59,453 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-12 06:14:59,454 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-11-12 06:14:59,454 INFO  L87              Difference]: Start difference. First operand 774 states and 944 transitions. 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)
[2020-11-12 06:14:59,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:59,585 INFO  L93              Difference]: Finished difference Result 793 states and 982 transitions.
[2020-11-12 06:14:59,585 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-11-12 06:14:59,586 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
[2020-11-12 06:14:59,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:59,590 INFO  L225             Difference]: With dead ends: 793
[2020-11-12 06:14:59,590 INFO  L226             Difference]: Without dead ends: 729
[2020-11-12 06:14:59,591 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-11-12 06:14:59,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 729 states.
[2020-11-12 06:14:59,607 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729.
[2020-11-12 06:14:59,609 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 729 states, 654 states have (on average 1.353211009174312) internal successors, (885), 728 states have internal predecessors, (885), 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)
[2020-11-12 06:14:59,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 885 transitions.
[2020-11-12 06:14:59,611 INFO  L78                 Accepts]: Start accepts. Automaton has 729 states and 885 transitions. Word has length 48
[2020-11-12 06:14:59,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:59,612 INFO  L481      AbstractCegarLoop]: Abstraction has 729 states and 885 transitions.
[2020-11-12 06:14:59,612 INFO  L482      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)
[2020-11-12 06:14:59,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 729 states and 885 transitions.
[2020-11-12 06:14:59,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-12 06:14:59,614 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:59,614 INFO  L494         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]
[2020-11-12 06:14:59,614 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-11-12 06:14:59,614 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:59,615 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:59,615 INFO  L82        PathProgramCache]: Analyzing trace with hash -277170535, now seen corresponding path program 1 times
[2020-11-12 06:14:59,615 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:59,616 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324705971]
[2020-11-12 06:14:59,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:59,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:14:59,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:14:59,760 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324705971]
[2020-11-12 06:14:59,761 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:14:59,761 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-11-12 06:14:59,761 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021374337]
[2020-11-12 06:14:59,762 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-12 06:14:59,762 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:14:59,762 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-12 06:14:59,763 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-11-12 06:14:59,763 INFO  L87              Difference]: Start difference. First operand 729 states and 885 transitions. Second operand  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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)
[2020-11-12 06:14:59,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:14:59,924 INFO  L93              Difference]: Finished difference Result 519 states and 640 transitions.
[2020-11-12 06:14:59,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-11-12 06:14:59,925 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 49
[2020-11-12 06:14:59,925 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:14:59,927 INFO  L225             Difference]: With dead ends: 519
[2020-11-12 06:14:59,927 INFO  L226             Difference]: Without dead ends: 456
[2020-11-12 06:14:59,928 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-11-12 06:14:59,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 456 states.
[2020-11-12 06:14:59,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456.
[2020-11-12 06:14:59,940 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 456 states, 411 states have (on average 1.3187347931873479) internal successors, (542), 455 states have internal predecessors, (542), 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)
[2020-11-12 06:14:59,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 542 transitions.
[2020-11-12 06:14:59,941 INFO  L78                 Accepts]: Start accepts. Automaton has 456 states and 542 transitions. Word has length 49
[2020-11-12 06:14:59,942 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:14:59,942 INFO  L481      AbstractCegarLoop]: Abstraction has 456 states and 542 transitions.
[2020-11-12 06:14:59,942 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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)
[2020-11-12 06:14:59,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 456 states and 542 transitions.
[2020-11-12 06:14:59,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-11-12 06:14:59,944 INFO  L486         BasicCegarLoop]: Found error trace
[2020-11-12 06:14:59,944 INFO  L494         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]
[2020-11-12 06:14:59,944 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-11-12 06:14:59,944 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-12 06:14:59,945 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-12 06:14:59,945 INFO  L82        PathProgramCache]: Analyzing trace with hash 2135820543, now seen corresponding path program 1 times
[2020-11-12 06:14:59,945 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-11-12 06:14:59,946 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435602358]
[2020-11-12 06:14:59,946 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-12 06:14:59,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-12 06:15:00,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-12 06:15:00,104 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435602358]
[2020-11-12 06:15:00,104 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-12 06:15:00,105 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-11-12 06:15:00,105 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787433297]
[2020-11-12 06:15:00,106 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-11-12 06:15:00,106 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-11-12 06:15:00,106 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-11-12 06:15:00,107 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-11-12 06:15:00,107 INFO  L87              Difference]: Start difference. First operand 456 states and 542 transitions. Second operand  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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)
[2020-11-12 06:15:00,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-12 06:15:00,209 INFO  L93              Difference]: Finished difference Result 87 states and 113 transitions.
[2020-11-12 06:15:00,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2020-11-12 06:15:00,210 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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
[2020-11-12 06:15:00,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-12 06:15:00,210 INFO  L225             Difference]: With dead ends: 87
[2020-11-12 06:15:00,210 INFO  L226             Difference]: Without dead ends: 0
[2020-11-12 06:15:00,211 INFO  L749         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2020-11-12 06:15:00,211 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-11-12 06:15:00,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-11-12 06:15:00,211 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)
[2020-11-12 06:15:00,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-11-12 06:15:00,212 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50
[2020-11-12 06:15:00,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-11-12 06:15:00,212 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-11-12 06:15:00,212 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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)
[2020-11-12 06:15:00,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-11-12 06:15:00,212 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-11-12 06:15:00,213 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-11-12 06:15:00,218 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:15:00 BasicIcfg
[2020-11-12 06:15:00,218 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-12 06:15:00,221 INFO  L168              Benchmark]: Toolchain (without parser) took 7183.66 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 277.2 MB in the beginning and 583.0 MB in the end (delta: -305.8 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,222 INFO  L168              Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,223 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 767.18 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 244.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,224 INFO  L168              Benchmark]: Boogie Procedure Inliner took 51.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 242.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,224 INFO  L168              Benchmark]: Boogie Preprocessor took 30.62 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 241.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,229 INFO  L168              Benchmark]: RCFGBuilder took 663.41 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,230 INFO  L168              Benchmark]: TraceAbstraction took 5655.95 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 262.4 MB in the beginning and 583.0 MB in the end (delta: -320.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB.
[2020-11-12 06:15:00,242 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.66 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 767.18 ms. Allocated memory is still 302.0 MB. Free memory was 276.5 MB in the beginning and 244.6 MB in the end (delta: 31.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 51.64 ms. Allocated memory is still 302.0 MB. Free memory was 244.6 MB in the beginning and 242.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 30.62 ms. Allocated memory is still 302.0 MB. Free memory was 242.6 MB in the beginning and 241.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB.
 * RCFGBuilder took 663.41 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 263.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 5655.95 ms. Allocated memory was 302.0 MB in the beginning and 648.0 MB in the end (delta: 346.0 MB). Free memory was 262.4 MB in the beginning and 583.0 MB in the end (delta: -320.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 603 SDtfs, 705 SDslu, 2247 SDs, 0 SdLazy, 252 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8475occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 640 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 414 NumberOfCodeBlocks, 414 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 51039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...