./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memset.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 5fbdf5bf
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memset.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 566f1414dafe692faf7ed7456be2d3e7d288640b
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b
[2021-08-30 17:55:28,635 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-08-30 17:55:28,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-30 17:55:28,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-30 17:55:28,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-30 17:55:28,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-30 17:55:28,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-30 17:55:28,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-30 17:55:28,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-30 17:55:28,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-30 17:55:28,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-08-30 17:55:28,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-30 17:55:28,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-30 17:55:28,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-30 17:55:28,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-30 17:55:28,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-30 17:55:28,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-30 17:55:28,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-30 17:55:28,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-30 17:55:28,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-30 17:55:28,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-30 17:55:28,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-30 17:55:28,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-08-30 17:55:28,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-30 17:55:28,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-30 17:55:28,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-30 17:55:28,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-30 17:55:28,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-30 17:55:28,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-30 17:55:28,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-30 17:55:28,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-30 17:55:28,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-30 17:55:28,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-30 17:55:28,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-30 17:55:28,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-30 17:55:28,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-30 17:55:28,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-30 17:55:28,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-30 17:55:28,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-30 17:55:28,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-30 17:55:28,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-08-30 17:55:28,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-08-30 17:55:28,739 INFO L113 SettingsManager]: Loading preferences was successful
[2021-08-30 17:55:28,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-30 17:55:28,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-30 17:55:28,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-30 17:55:28,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-30 17:55:28,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-08-30 17:55:28,747 INFO L138 SettingsManager]: * Use SBE=true
[2021-08-30 17:55:28,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-30 17:55:28,748 INFO L138 SettingsManager]: * sizeof long=4
[2021-08-30 17:55:28,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-08-30 17:55:28,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-08-30 17:55:28,748 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-08-30 17:55:28,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-08-30 17:55:28,749 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-08-30 17:55:28,749 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-08-30 17:55:28,749 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-08-30 17:55:28,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-08-30 17:55:28,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-08-30 17:55:28,750 INFO L138 SettingsManager]: * sizeof long double=12
[2021-08-30 17:55:28,750 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-08-30 17:55:28,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-30 17:55:28,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-08-30 17:55:28,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-08-30 17:55:28,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-30 17:55:28,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-30 17:55:28,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-08-30 17:55:28,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-08-30 17:55:28,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-08-30 17:55:28,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-08-30 17:55:28,752 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566f1414dafe692faf7ed7456be2d3e7d288640b
[2021-08-30 17:55:29,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-30 17:55:29,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-30 17:55:29,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-30 17:55:29,048 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-08-30 17:55:29,049 INFO L275 PluginConnector]: CDTParser initialized
[2021-08-30 17:55:29,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memset.c
[2021-08-30 17:55:29,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38ac5707/3b835e9b6ed84b5ba23b729a3d63aa51/FLAG6f365f7a2
[2021-08-30 17:55:29,532 INFO L306 CDTParser]: Found 1 translation units.
[2021-08-30 17:55:29,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memset.c
[2021-08-30 17:55:29,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38ac5707/3b835e9b6ed84b5ba23b729a3d63aa51/FLAG6f365f7a2
[2021-08-30 17:55:29,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38ac5707/3b835e9b6ed84b5ba23b729a3d63aa51
[2021-08-30 17:55:29,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-30 17:55:29,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-08-30 17:55:29,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-08-30 17:55:29,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-08-30 17:55:29,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-08-30 17:55:29,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:55:29" (1/1) ...
[2021-08-30 17:55:29,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5f544c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:29, skipping insertion in model container
[2021-08-30 17:55:29,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:55:29" (1/1) ...
[2021-08-30 17:55:29,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-08-30 17:55:29,994 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-08-30 17:55:30,103 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-08-30 17:55:30,118 INFO L203 MainTranslator]: Completed pre-run
[2021-08-30 17:55:30,131 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-08-30 17:55:30,142 INFO L208 MainTranslator]: Completed translation
[2021-08-30 17:55:30,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30 WrapperNode
[2021-08-30 17:55:30,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-08-30 17:55:30,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-30 17:55:30,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-30 17:55:30,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-08-30 17:55:30,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-30 17:55:30,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-30 17:55:30,168 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-08-30 17:55:30,168 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-08-30 17:55:30,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (1/1) ...
[2021-08-30 17:55:30,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-08-30 17:55:30,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-30 17:55:30,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-08-30 17:55:30,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-08-30 17:55:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-08-30 17:55:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-30 17:55:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-08-30 17:55:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2021-08-30 17:55:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure memset
[2021-08-30 17:55:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-08-30 17:55:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-08-30 17:55:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2021-08-30 17:55:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-08-30 17:55:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-08-30 17:55:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-30 17:55:30,344 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-08-30 17:55:30,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-30 17:55:30,386 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-08-30 17:55:30,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:30 BoogieIcfgContainer
[2021-08-30 17:55:30,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-30 17:55:30,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-08-30 17:55:30,393 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-08-30 17:55:30,395 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-08-30 17:55:30,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:55:29" (1/3) ...
[2021-08-30 17:55:30,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57399e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:55:30, skipping insertion in model container
[2021-08-30 17:55:30,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:55:30" (2/3) ...
[2021-08-30 17:55:30,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57399e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:55:30, skipping insertion in model container
[2021-08-30 17:55:30,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:30" (3/3) ...
[2021-08-30 17:55:30,399 INFO L111 eAbstractionObserver]: Analyzing ICFG memset.c
[2021-08-30 17:55:30,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-08-30 17:55:30,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-08-30 17:55:30,456 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-08-30 17:55:30,464 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-08-30 17:55:30,464 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-08-30 17:55:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-08-30 17:55:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-08-30 17:55:30,496 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-30 17:55:30,497 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-08-30 17:55:30,497 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] ===
[2021-08-30 17:55:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-30 17:55:30,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times
[2021-08-30 17:55:30,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-30 17:55:30,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852503855]
[2021-08-30 17:55:30,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:30,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-30 17:55:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-30 17:55:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:30,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-30 17:55:30,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852503855]
[2021-08-30 17:55:30,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852503855] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-30 17:55:30,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-30 17:55:30,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-30 17:55:30,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028861018]
[2021-08-30 17:55:30,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-08-30 17:55:30,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-30 17:55:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-08-30 17:55:30,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-08-30 17:55:30,814 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-30 17:55:30,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-30 17:55:30,907 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions.
[2021-08-30 17:55:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-08-30 17:55:30,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-08-30 17:55:30,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-30 17:55:30,917 INFO L225 Difference]: With dead ends: 19
[2021-08-30 17:55:30,917 INFO L226 Difference]: Without dead ends: 16
[2021-08-30 17:55:30,919 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.46ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-08-30 17:55:30,926 INFO L928 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.54ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.10ms IncrementalHoareTripleChecker+Time
[2021-08-30 17:55:30,927 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 9 Invalid, 39 Unknown, 0 Unchecked, 1.54ms Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 73.10ms Time]
[2021-08-30 17:55:30,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2021-08-30 17:55:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2021-08-30 17:55:30,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:30,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2021-08-30 17:55:30,967 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7
[2021-08-30 17:55:30,967 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-30 17:55:30,967 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2021-08-30 17:55:30,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-30 17:55:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2021-08-30 17:55:30,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-08-30 17:55:30,968 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-30 17:55:30,969 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-08-30 17:55:30,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-08-30 17:55:30,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] ===
[2021-08-30 17:55:30,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-30 17:55:30,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times
[2021-08-30 17:55:30,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-30 17:55:30,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432866046]
[2021-08-30 17:55:30,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:30,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-30 17:55:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-30 17:55:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:31,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-30 17:55:31,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432866046]
[2021-08-30 17:55:31,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432866046] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-30 17:55:31,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-30 17:55:31,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-08-30 17:55:31,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549838534]
[2021-08-30 17:55:31,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-08-30 17:55:31,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-30 17:55:31,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-08-30 17:55:31,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-08-30 17:55:31,076 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-30 17:55:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-30 17:55:31,113 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2021-08-30 17:55:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-08-30 17:55:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7
[2021-08-30 17:55:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-30 17:55:31,115 INFO L225 Difference]: With dead ends: 15
[2021-08-30 17:55:31,115 INFO L226 Difference]: Without dead ends: 15
[2021-08-30 17:55:31,116 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.95ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-08-30 17:55:31,120 INFO L928 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.40ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.13ms IncrementalHoareTripleChecker+Time
[2021-08-30 17:55:31,121 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 28 Unknown, 0 Unchecked, 2.40ms Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 29.13ms Time]
[2021-08-30 17:55:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2021-08-30 17:55:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2021-08-30 17:55:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:31,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2021-08-30 17:55:31,131 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7
[2021-08-30 17:55:31,131 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-30 17:55:31,131 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2021-08-30 17:55:31,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-08-30 17:55:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2021-08-30 17:55:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-08-30 17:55:31,132 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-30 17:55:31,133 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-30 17:55:31,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-08-30 17:55:31,134 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] ===
[2021-08-30 17:55:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-30 17:55:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1462327129, now seen corresponding path program 1 times
[2021-08-30 17:55:31,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-30 17:55:31,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418574961]
[2021-08-30 17:55:31,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:31,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-30 17:55:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-30 17:55:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-08-30 17:55:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:31,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-30 17:55:31,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418574961]
[2021-08-30 17:55:31,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418574961] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-30 17:55:31,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-08-30 17:55:31,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-08-30 17:55:31,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944727551]
[2021-08-30 17:55:31,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-08-30 17:55:31,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-30 17:55:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-08-30 17:55:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-08-30 17:55:31,198 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-08-30 17:55:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-30 17:55:31,272 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions.
[2021-08-30 17:55:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-08-30 17:55:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14
[2021-08-30 17:55:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-30 17:55:31,274 INFO L225 Difference]: With dead ends: 18
[2021-08-30 17:55:31,274 INFO L226 Difference]: Without dead ends: 16
[2021-08-30 17:55:31,274 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.16ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-08-30 17:55:31,275 INFO L928 BasicCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.04ms IncrementalHoareTripleChecker+Time
[2021-08-30 17:55:31,275 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 39 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 48.04ms Time]
[2021-08-30 17:55:31,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2021-08-30 17:55:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2021-08-30 17:55:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2021-08-30 17:55:31,282 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14
[2021-08-30 17:55:31,282 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-30 17:55:31,282 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2021-08-30 17:55:31,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-08-30 17:55:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2021-08-30 17:55:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-08-30 17:55:31,283 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-30 17:55:31,283 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-30 17:55:31,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-08-30 17:55:31,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] ===
[2021-08-30 17:55:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-30 17:55:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1971150090, now seen corresponding path program 1 times
[2021-08-30 17:55:31,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-30 17:55:31,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632673571]
[2021-08-30 17:55:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:31,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-30 17:55:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-30 17:55:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-08-30 17:55:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:31,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-30 17:55:31,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632673571]
[2021-08-30 17:55:31,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632673571] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-30 17:55:31,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655960094]
[2021-08-30 17:55:31,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:31,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-30 17:55:31,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-30 17:55:31,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-30 17:55:31,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-08-30 17:55:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:31,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-08-30 17:55:31,467 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-08-30 17:55:31,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:31,531 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-08-30 17:55:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:31,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655960094] provided 0 perfect and 2 imperfect interpolant sequences
[2021-08-30 17:55:31,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences.
[2021-08-30 17:55:31,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9
[2021-08-30 17:55:31,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856384887]
[2021-08-30 17:55:31,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-08-30 17:55:31,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-30 17:55:31,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-08-30 17:55:31,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2021-08-30 17:55:31,631 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-08-30 17:55:31,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-30 17:55:31,771 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions.
[2021-08-30 17:55:31,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-08-30 17:55:31,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 15
[2021-08-30 17:55:31,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-30 17:55:31,773 INFO L225 Difference]: With dead ends: 23
[2021-08-30 17:55:31,773 INFO L226 Difference]: Without dead ends: 19
[2021-08-30 17:55:31,777 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 112.12ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210
[2021-08-30 17:55:31,785 INFO L928 BasicCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.74ms IncrementalHoareTripleChecker+Time
[2021-08-30 17:55:31,786 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 14 Invalid, 57 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [11 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 48.74ms Time]
[2021-08-30 17:55:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2021-08-30 17:55:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2021-08-30 17:55:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2021-08-30 17:55:31,789 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15
[2021-08-30 17:55:31,789 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-30 17:55:31,789 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2021-08-30 17:55:31,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2021-08-30 17:55:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2021-08-30 17:55:31,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-08-30 17:55:31,796 INFO L505 BasicCegarLoop]: Found error trace
[2021-08-30 17:55:31,796 INFO L513 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-08-30 17:55:31,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-08-30 17:55:32,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-30 17:55:32,019 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr2ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK] ===
[2021-08-30 17:55:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-08-30 17:55:32,020 INFO L82 PathProgramCache]: Analyzing trace with hash 149804697, now seen corresponding path program 2 times
[2021-08-30 17:55:32,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-30 17:55:32,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243017454]
[2021-08-30 17:55:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-30 17:55:32,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-30 17:55:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:32,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-08-30 17:55:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:32,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-08-30 17:55:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-30 17:55:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-08-30 17:55:32,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-08-30 17:55:32,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243017454]
[2021-08-30 17:55:32,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243017454] provided 0 perfect and 1 imperfect interpolant sequences
[2021-08-30 17:55:32,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548294880]
[2021-08-30 17:55:32,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-08-30 17:55:32,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-30 17:55:32,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-30 17:55:32,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-08-30 17:55:32,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-08-30 17:55:32,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2021-08-30 17:55:32,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-08-30 17:55:32,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-08-30 17:55:32,215 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-08-30 17:55:32,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9
[2021-08-30 17:55:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2021-08-30 17:55:32,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-08-30 17:55:32,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548294880] provided 1 perfect and 0 imperfect interpolant sequences
[2021-08-30 17:55:32,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2021-08-30 17:55:32,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13
[2021-08-30 17:55:32,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359150941]
[2021-08-30 17:55:32,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-08-30 17:55:32,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-08-30 17:55:32,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-08-30 17:55:32,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2021-08-30 17:55:32,395 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:32,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-08-30 17:55:32,419 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions.
[2021-08-30 17:55:32,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-08-30 17:55:32,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18
[2021-08-30 17:55:32,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-08-30 17:55:32,420 INFO L225 Difference]: With dead ends: 18
[2021-08-30 17:55:32,420 INFO L226 Difference]: Without dead ends: 0
[2021-08-30 17:55:32,420 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 93.71ms TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182
[2021-08-30 17:55:32,421 INFO L928 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 10.49ms IncrementalHoareTripleChecker+Time
[2021-08-30 17:55:32,421 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 16 Unchecked, 10.49ms Time]
[2021-08-30 17:55:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-08-30 17:55:32,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-08-30 17:55:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-30 17:55:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-08-30 17:55:32,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2021-08-30 17:55:32,423 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-08-30 17:55:32,423 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-08-30 17:55:32,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-30 17:55:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-08-30 17:55:32,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-08-30 17:55:32,425 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION (2 of 3 remaining)
[2021-08-30 17:55:32,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION (1 of 3 remaining)
[2021-08-30 17:55:32,426 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2ENSURES_VIOLATIONMEMORY_LEAK (0 of 3 remaining)
[2021-08-30 17:55:32,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2021-08-30 17:55:32,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-08-30 17:55:32,645 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-08-30 17:55:32,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:55:32 BoogieIcfgContainer
[2021-08-30 17:55:32,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-08-30 17:55:32,648 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-08-30 17:55:32,648 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-08-30 17:55:32,649 INFO L275 PluginConnector]: Witness Printer initialized
[2021-08-30 17:55:32,649 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:55:30" (3/4) ...
[2021-08-30 17:55:32,657 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-08-30 17:55:32,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init
[2021-08-30 17:55:32,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset
[2021-08-30 17:55:32,663 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main
[2021-08-30 17:55:32,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2021-08-30 17:55:32,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2021-08-30 17:55:32,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-08-30 17:55:32,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-08-30 17:55:32,705 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-08-30 17:55:32,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-08-30 17:55:32,706 INFO L158 Benchmark]: Toolchain (without parser) took 2739.64ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.9MB in the beginning and 25.3MB in the end (delta: 6.7MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,706 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-30 17:55:32,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.65ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 36.5MB in the end (delta: -4.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,707 INFO L158 Benchmark]: Boogie Preprocessor took 23.34ms. Allocated memory is still 54.5MB. Free memory was 36.5MB in the beginning and 35.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,707 INFO L158 Benchmark]: RCFGBuilder took 221.06ms. Allocated memory is still 54.5MB. Free memory was 35.1MB in the beginning and 27.3MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,707 INFO L158 Benchmark]: TraceAbstraction took 2255.57ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 26.7MB in the beginning and 27.4MB in the end (delta: -663.2kB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,707 INFO L158 Benchmark]: Witness Printer took 56.84ms. Allocated memory is still 69.2MB. Free memory was 27.4MB in the beginning and 25.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-08-30 17:55:32,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 175.65ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 36.5MB in the end (delta: -4.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 23.34ms. Allocated memory is still 54.5MB. Free memory was 36.5MB in the beginning and 35.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 221.06ms. Allocated memory is still 54.5MB. Free memory was 35.1MB in the beginning and 27.3MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 2255.57ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 26.7MB in the beginning and 27.4MB in the end (delta: -663.2kB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
* Witness Printer took 56.84ms. Allocated memory is still 69.2MB. Free memory was 27.4MB in the beginning and 25.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 27]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 27]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 25]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2190.30ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 18.12ms, AutomataDifference: 475.39ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.37ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 209.50ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 167.86ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 16 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 24 mSDtfsCounter, 157 mSolverCounterSat, 9.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 296.40ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 43.59ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.02ms SsaConstructionTime, 101.00ms SatisfiabilityAnalysisTime, 840.91ms InterpolantComputationTime, 94 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 10 QuantifiedInterpolants, 293 SizeOfPredicates, 1 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 10/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
3 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-08-30 17:55:32,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...