/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i


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


This is Ultimate 0.2.0-aa1e80b
[2020-12-17 17:22:27,716 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-12-17 17:22:27,721 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-17 17:22:27,778 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-17 17:22:27,779 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-17 17:22:27,783 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2020-12-17 17:22:27,821 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-17 17:22:27,825 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-17 17:22:27,832 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2020-12-17 17:22:27,844 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-12-17 17:22:27,848 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-17 17:22:27,858 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-12-17 17:22:27,859 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-12-17 17:22:27,872 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-17 17:22:27,874 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-12-17 17:22:27,875 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2020-12-17 17:22:27,925 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-12-17 17:22:27,926 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-17 17:22:27,930 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-17 17:22:27,931 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-12-17 17:22:27,931 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-12-17 17:22:27,931 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-17 17:22:27,932 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-12-17 17:22:27,932 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-12-17 17:22:27,932 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-12-17 17:22:27,933 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-12-17 17:22:27,934 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-12-17 17:22:27,934 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-17 17:22:27,934 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-12-17 17:22:27,934 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-12-17 17:22:27,935 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-12-17 17:22:27,935 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-12-17 17:22:27,935 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-12-17 17:22:27,935 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-17 17:22:27,936 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-12-17 17:22:27,936 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-12-17 17:22:27,936 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-12-17 17:22:27,937 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-17 17:22:27,937 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-17 17:22:27,937 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-12-17 17:22:27,937 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-17 17:22:27,938 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-12-17 17:22:27,938 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-17 17:22:27,938 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2020-12-17 17:22:27,938 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-17 17:22:27,938 INFO  L138        SettingsManager]:  * Minimization of abstraction=NONE
[2020-12-17 17:22:27,939 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-17 17:22:28,338 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-17 17:22:28,392 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-17 17:22:28,395 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-17 17:22:28,397 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-12-17 17:22:28,397 INFO  L275        PluginConnector]: CDTParser initialized
[2020-12-17 17:22:28,398 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i
[2020-12-17 17:22:28,507 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189/FLAG01cfed9d2
[2020-12-17 17:22:29,316 INFO  L306              CDTParser]: Found 1 translation units.
[2020-12-17 17:22:29,317 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_rmo.oepc.i
[2020-12-17 17:22:29,341 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189/FLAG01cfed9d2
[2020-12-17 17:22:29,555 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555844969/65774b741d074864a4c1701bd7c4e189
[2020-12-17 17:22:29,561 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-17 17:22:29,563 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-12-17 17:22:29,569 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-17 17:22:29,569 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-17 17:22:29,573 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-17 17:22:29,574 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:29" (1/1) ...
[2020-12-17 17:22:29,582 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ee4bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:29, skipping insertion in model container
[2020-12-17 17:22:29,582 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:22:29" (1/1) ...
[2020-12-17 17:22:29,591 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-12-17 17:22:29,635 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-12-17 17:22:30,055 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:22:30,066 INFO  L203         MainTranslator]: Completed pre-run
[2020-12-17 17:22:30,113 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-17 17:22:30,248 INFO  L208         MainTranslator]: Completed translation
[2020-12-17 17:22:30,249 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30 WrapperNode
[2020-12-17 17:22:30,249 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-17 17:22:30,250 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-17 17:22:30,250 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-17 17:22:30,262 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-17 17:22:30,270 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,286 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,318 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-17 17:22:30,319 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-17 17:22:30,320 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-17 17:22:30,320 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-12-17 17:22:30,328 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,329 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,347 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,347 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,360 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,365 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,371 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (1/1) ...
[2020-12-17 17:22:30,376 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-17 17:22:30,381 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-17 17:22:30,381 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-12-17 17:22:30,381 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-12-17 17:22:30,382 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (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
[2020-12-17 17:22:30,476 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-12-17 17:22:30,477 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-12-17 17:22:30,478 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-17 17:22:30,478 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-17 17:22:30,479 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-12-17 17:22:30,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-12-17 17:22:30,480 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-12-17 17:22:30,480 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-12-17 17:22:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-12-17 17:22:30,481 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-12-17 17:22:30,481 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-17 17:22:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-12-17 17:22:30,482 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-17 17:22:30,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-17 17:22:30,484 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-12-17 17:22:31,086 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-17 17:22:31,086 INFO  L298             CfgBuilder]: Removed 10 assume(true) statements.
[2020-12-17 17:22:31,090 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:31 BoogieIcfgContainer
[2020-12-17 17:22:31,090 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-17 17:22:31,092 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-17 17:22:31,093 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-12-17 17:22:31,096 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-12-17 17:22:31,097 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:22:29" (1/3) ...
[2020-12-17 17:22:31,098 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b69aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:31, skipping insertion in model container
[2020-12-17 17:22:31,098 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:22:30" (2/3) ...
[2020-12-17 17:22:31,099 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b69aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:22:31, skipping insertion in model container
[2020-12-17 17:22:31,099 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:22:31" (3/3) ...
[2020-12-17 17:22:31,101 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe037_rmo.oepc.i
[2020-12-17 17:22:31,122 WARN  L168   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-12-17 17:22:31,123 INFO  L179   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-17 17:22:31,127 INFO  L191   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-12-17 17:22:31,128 INFO  L351   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-12-17 17:22:31,178 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,178 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,178 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,179 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,179 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,179 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,179 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,179 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,180 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,180 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,180 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,180 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,181 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,182 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,182 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,182 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,182 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,182 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,183 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,183 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,183 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,184 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,184 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,184 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,190 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,191 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,192 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,192 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,193 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,193 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,194 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,194 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,200 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,201 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,201 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,201 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,205 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,205 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,206 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,206 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,213 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,213 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,214 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,214 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,218 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,218 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,219 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,219 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-12-17 17:22:31,222 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-12-17 17:22:31,238 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-12-17 17:22:31,278 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-12-17 17:22:31,279 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-12-17 17:22:31,279 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-17 17:22:31,279 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-17 17:22:31,279 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-17 17:22:31,280 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-12-17 17:22:31,280 INFO  L383      AbstractCegarLoop]: Minimize is NONE
[2020-12-17 17:22:31,280 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-17 17:22:31,297 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 80 transitions, 175 flow
[2020-12-17 17:22:32,445 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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)
[2020-12-17 17:22:32,483 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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)
[2020-12-17 17:22:32,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-12-17 17:22:32,594 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:32,595 INFO  L504         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]
[2020-12-17 17:22:32,595 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:32,601 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:32,601 INFO  L82        PathProgramCache]: Analyzing trace with hash -1869165386, now seen corresponding path program 1 times
[2020-12-17 17:22:32,611 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:32,612 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317786493]
[2020-12-17 17:22:32,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:32,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:33,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:33,109 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317786493]
[2020-12-17 17:22:33,110 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:33,110 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-12-17 17:22:33,111 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726583453]
[2020-12-17 17:22:33,116 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-12-17 17:22:33,117 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:33,132 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-12-17 17:22:33,133 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-12-17 17:22:33,158 INFO  L87              Difference]: Start difference. First operand  has 9849 states, 9847 states have (on average 3.6144003249720726) internal successors, (35591), 9848 states have internal predecessors, (35591), 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 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)
[2020-12-17 17:22:33,575 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:33,576 INFO  L93              Difference]: Finished difference Result 9342 states and 31814 transitions.
[2020-12-17 17:22:33,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-12-17 17:22:33,579 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
[2020-12-17 17:22:33,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:33,643 INFO  L225             Difference]: With dead ends: 9342
[2020-12-17 17:22:33,643 INFO  L226             Difference]: Without dead ends: 4558
[2020-12-17 17:22:33,645 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:33,646 INFO  L78                 Accepts]: Start accepts. Automaton has 4558 states. Word has length 43
[2020-12-17 17:22:33,648 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:33,648 INFO  L481      AbstractCegarLoop]: Abstraction has 4558 states.
[2020-12-17 17:22:33,648 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)
[2020-12-17 17:22:33,649 INFO  L276                IsEmpty]: Start isEmpty. Operand 4558 states.
[2020-12-17 17:22:33,666 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-12-17 17:22:33,666 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:33,666 INFO  L504         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]
[2020-12-17 17:22:33,667 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-17 17:22:33,667 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:33,668 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:33,668 INFO  L82        PathProgramCache]: Analyzing trace with hash -1028386504, now seen corresponding path program 1 times
[2020-12-17 17:22:33,668 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:33,669 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861032457]
[2020-12-17 17:22:33,669 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:33,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:33,960 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:33,961 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861032457]
[2020-12-17 17:22:33,961 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:33,961 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:33,962 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633762846]
[2020-12-17 17:22:33,964 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:33,965 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:33,966 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:33,967 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:33,968 INFO  L87              Difference]: Start difference. First operand 4558 states. 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)
[2020-12-17 17:22:34,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:34,264 INFO  L93              Difference]: Finished difference Result 3802 states and 12186 transitions.
[2020-12-17 17:22:34,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2020-12-17 17:22:34,265 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
[2020-12-17 17:22:34,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:34,291 INFO  L225             Difference]: With dead ends: 3802
[2020-12-17 17:22:34,291 INFO  L226             Difference]: Without dead ends: 2686
[2020-12-17 17:22:34,292 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-12-17 17:22:34,293 INFO  L78                 Accepts]: Start accepts. Automaton has 2686 states. Word has length 47
[2020-12-17 17:22:34,294 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:34,294 INFO  L481      AbstractCegarLoop]: Abstraction has 2686 states.
[2020-12-17 17:22:34,294 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)
[2020-12-17 17:22:34,294 INFO  L276                IsEmpty]: Start isEmpty. Operand 2686 states.
[2020-12-17 17:22:34,308 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2020-12-17 17:22:34,308 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:34,308 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:34,308 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-17 17:22:34,309 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:34,310 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:34,310 INFO  L82        PathProgramCache]: Analyzing trace with hash 708225082, now seen corresponding path program 1 times
[2020-12-17 17:22:34,311 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:34,311 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143198864]
[2020-12-17 17:22:34,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:34,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:34,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:34,588 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143198864]
[2020-12-17 17:22:34,589 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:34,589 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-12-17 17:22:34,589 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475373606]
[2020-12-17 17:22:34,590 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-12-17 17:22:34,591 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:34,597 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-12-17 17:22:34,598 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2020-12-17 17:22:34,598 INFO  L87              Difference]: Start difference. First operand 2686 states. Second operand  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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)
[2020-12-17 17:22:34,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:34,871 INFO  L93              Difference]: Finished difference Result 1822 states and 5502 transitions.
[2020-12-17 17:22:34,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2020-12-17 17:22:34,872 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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 51
[2020-12-17 17:22:34,873 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:34,882 INFO  L225             Difference]: With dead ends: 1822
[2020-12-17 17:22:34,883 INFO  L226             Difference]: Without dead ends: 1282
[2020-12-17 17:22:34,883 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2020-12-17 17:22:34,884 INFO  L78                 Accepts]: Start accepts. Automaton has 1282 states. Word has length 51
[2020-12-17 17:22:34,884 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:34,884 INFO  L481      AbstractCegarLoop]: Abstraction has 1282 states.
[2020-12-17 17:22:34,884 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 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)
[2020-12-17 17:22:34,885 INFO  L276                IsEmpty]: Start isEmpty. Operand 1282 states.
[2020-12-17 17:22:34,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2020-12-17 17:22:34,889 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:34,889 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:34,890 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-17 17:22:34,890 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:34,890 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:34,891 INFO  L82        PathProgramCache]: Analyzing trace with hash 139688856, now seen corresponding path program 1 times
[2020-12-17 17:22:34,891 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:34,891 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897122188]
[2020-12-17 17:22:34,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:34,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:35,037 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:35,038 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897122188]
[2020-12-17 17:22:35,038 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:35,038 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:35,038 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085590066]
[2020-12-17 17:22:35,039 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:35,039 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:35,040 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:35,040 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:35,040 INFO  L87              Difference]: Start difference. First operand 1282 states. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:35,142 INFO  L93              Difference]: Finished difference Result 1805 states and 5308 transitions.
[2020-12-17 17:22:35,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:22:35,143 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2020-12-17 17:22:35,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:35,150 INFO  L225             Difference]: With dead ends: 1805
[2020-12-17 17:22:35,151 INFO  L226             Difference]: Without dead ends: 912
[2020-12-17 17:22:35,151 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:35,151 INFO  L78                 Accepts]: Start accepts. Automaton has 912 states. Word has length 55
[2020-12-17 17:22:35,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:35,152 INFO  L481      AbstractCegarLoop]: Abstraction has 912 states.
[2020-12-17 17:22:35,152 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 912 states.
[2020-12-17 17:22:35,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2020-12-17 17:22:35,156 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:35,156 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:35,156 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-17 17:22:35,156 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:35,157 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:35,157 INFO  L82        PathProgramCache]: Analyzing trace with hash -621080086, now seen corresponding path program 2 times
[2020-12-17 17:22:35,157 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:35,158 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789877397]
[2020-12-17 17:22:35,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:35,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:35,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:35,277 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789877397]
[2020-12-17 17:22:35,277 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:35,278 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:35,278 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962113654]
[2020-12-17 17:22:35,278 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:35,278 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:35,279 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:35,279 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:35,279 INFO  L87              Difference]: Start difference. First operand 912 states. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:35,379 INFO  L93              Difference]: Finished difference Result 1315 states and 3797 transitions.
[2020-12-17 17:22:35,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:22:35,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2020-12-17 17:22:35,380 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:35,385 INFO  L225             Difference]: With dead ends: 1315
[2020-12-17 17:22:35,385 INFO  L226             Difference]: Without dead ends: 692
[2020-12-17 17:22:35,386 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:35,386 INFO  L78                 Accepts]: Start accepts. Automaton has 692 states. Word has length 55
[2020-12-17 17:22:35,387 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:35,387 INFO  L481      AbstractCegarLoop]: Abstraction has 692 states.
[2020-12-17 17:22:35,387 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 692 states.
[2020-12-17 17:22:35,390 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2020-12-17 17:22:35,390 INFO  L496         BasicCegarLoop]: Found error trace
[2020-12-17 17:22:35,391 INFO  L504         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-17 17:22:35,391 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-17 17:22:35,391 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-17 17:22:35,391 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-17 17:22:35,392 INFO  L82        PathProgramCache]: Analyzing trace with hash 952401922, now seen corresponding path program 3 times
[2020-12-17 17:22:35,392 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-17 17:22:35,392 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403773850]
[2020-12-17 17:22:35,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-17 17:22:35,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-17 17:22:35,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-17 17:22:35,540 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403773850]
[2020-12-17 17:22:35,540 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-17 17:22:35,540 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-12-17 17:22:35,540 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644666775]
[2020-12-17 17:22:35,541 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-12-17 17:22:35,541 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-17 17:22:35,542 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-12-17 17:22:35,542 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-12-17 17:22:35,542 INFO  L87              Difference]: Start difference. First operand 692 states. Second operand  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,622 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-17 17:22:35,622 INFO  L93              Difference]: Finished difference Result 584 states and 1626 transitions.
[2020-12-17 17:22:35,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-12-17 17:22:35,623 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2020-12-17 17:22:35,623 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-17 17:22:35,623 INFO  L225             Difference]: With dead ends: 584
[2020-12-17 17:22:35,623 INFO  L226             Difference]: Without dead ends: 0
[2020-12-17 17:22:35,624 INFO  L763         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-12-17 17:22:35,624 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states. Word has length 55
[2020-12-17 17:22:35,624 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-17 17:22:35,624 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states.
[2020-12-17 17:22:35,624 INFO  L482      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2020-12-17 17:22:35,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states.
[2020-12-17 17:22:35,625 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-12-17 17:22:35,625 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-12-17 17:22:35,630 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:22:35 BasicIcfg
[2020-12-17 17:22:35,630 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-12-17 17:22:35,633 INFO  L168              Benchmark]: Toolchain (without parser) took 6068.56 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 275.8 MB in the beginning and 539.8 MB in the end (delta: -264.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,634 INFO  L168              Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,634 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 680.39 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.5 MB in the end (delta: -35.4 kB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,635 INFO  L168              Benchmark]: Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,636 INFO  L168              Benchmark]: Boogie Preprocessor took 57.05 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,637 INFO  L168              Benchmark]: RCFGBuilder took 709.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,638 INFO  L168              Benchmark]: TraceAbstraction took 4537.81 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 248.2 MB in the beginning and 539.8 MB in the end (delta: -291.6 MB). Peak memory consumption was 44.0 MB. Max. memory is 16.0 GB.
[2020-12-17 17:22:35,642 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.83 ms. Allocated memory is still 302.0 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 680.39 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 275.5 MB in the end (delta: -35.4 kB). Peak memory consumption was 31.1 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 302.0 MB. Free memory was 275.5 MB in the beginning and 273.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 57.05 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 271.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB.
 * RCFGBuilder took 709.60 ms. Allocated memory is still 302.0 MB. Free memory was 271.3 MB in the beginning and 248.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 4537.81 ms. Allocated memory was 302.0 MB in the beginning and 635.4 MB in the end (delta: 333.4 MB). Free memory was 248.2 MB in the beginning and 539.8 MB in the end (delta: -291.6 MB). Peak memory consumption was 44.0 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, 78 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 553 SDtfs, 747 SDslu, 2005 SDs, 0 SdLazy, 227 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9849occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 38064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...