./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer --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 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:05:50,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:05:50,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:05:50,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:05:50,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:05:50,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:05:50,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:05:50,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:05:50,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:05:50,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:05:50,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:05:50,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:05:50,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:05:50,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:05:50,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:05:50,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:05:50,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:05:50,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:05:50,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:05:50,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:05:50,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:05:50,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:05:50,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:05:50,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:05:50,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:05:50,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:05:50,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:05:50,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:05:50,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:05:50,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:05:50,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:05:50,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:05:50,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:05:50,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:05:50,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:05:50,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:05:50,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:05:50,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:05:50,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:05:50,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:05:50,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:05:50,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-11-29 20:05:50,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:05:50,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:05:50,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:05:50,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:05:50,393 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:05:50,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:05:50,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:05:50,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:05:50,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:05:50,395 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:05:50,396 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:05:50,397 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:05:50,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:05:50,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 20:05:50,397 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:05:50,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:05:50,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:05:50,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:05:50,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:05:50,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:05:50,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:05:50,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:05:50,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:05:50,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:05:50,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:05:50,400 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:/tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2020-11-29 20:05:50,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:05:50,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:05:50,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:05:50,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:05:50,840 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:05:50,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-29 20:05:50,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/data/ae92db5d2/09678a461e4e4be0aa8cff509768f126/FLAGe614d7bcb [2020-11-29 20:05:51,547 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:05:51,552 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-29 20:05:51,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/data/ae92db5d2/09678a461e4e4be0aa8cff509768f126/FLAGe614d7bcb [2020-11-29 20:05:51,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/data/ae92db5d2/09678a461e4e4be0aa8cff509768f126 [2020-11-29 20:05:51,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:05:51,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 20:05:51,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:05:51,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:05:51,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:05:51,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:05:51" (1/1) ... [2020-11-29 20:05:51,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a96478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:51, skipping insertion in model container [2020-11-29 20:05:51,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:05:51" (1/1) ... [2020-11-29 20:05:51,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:05:51,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:05:52,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:05:52,170 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:05:52,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:05:52,231 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:05:52,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52 WrapperNode [2020-11-29 20:05:52,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:05:52,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:05:52,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:05:52,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:05:52,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... [2020-11-29 20:05:52,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:05:52,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:05:52,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:05:52,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:05:52,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:05:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 20:05:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:05:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 20:05:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 20:05:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 20:05:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:05:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:05:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:05:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:05:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 20:05:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:05:52,917 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:05:52,917 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 20:05:52,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:05:52 BoogieIcfgContainer [2020-11-29 20:05:52,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:05:52,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:05:52,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:05:52,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:05:52,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:05:51" (1/3) ... [2020-11-29 20:05:52,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42611484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:05:52, skipping insertion in model container [2020-11-29 20:05:52,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:05:52" (2/3) ... [2020-11-29 20:05:52,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42611484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:05:52, skipping insertion in model container [2020-11-29 20:05:52,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:05:52" (3/3) ... [2020-11-29 20:05:52,936 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2020-11-29 20:05:52,951 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:05:52,963 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-11-29 20:05:52,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-11-29 20:05:53,002 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:05:53,002 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 20:05:53,002 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:05:53,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:05:53,002 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:05:53,002 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:05:53,003 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:05:53,003 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:05:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 20:05:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:05:53,027 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:05:53,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:05:53,028 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 20:05:53,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:05:53,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870250, now seen corresponding path program 1 times [2020-11-29 20:05:53,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:05:53,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144468936] [2020-11-29 20:05:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:05:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:53,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:05:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:05:53,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144468936] [2020-11-29 20:05:53,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:05:53,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:05:53,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422987140] [2020-11-29 20:05:53,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:05:53,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:05:53,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:05:53,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:05:53,375 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2020-11-29 20:05:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:05:53,608 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-11-29 20:05:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:05:53,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 20:05:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:05:53,623 INFO L225 Difference]: With dead ends: 26 [2020-11-29 20:05:53,624 INFO L226 Difference]: Without dead ends: 23 [2020-11-29 20:05:53,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:05:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-29 20:05:53,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-29 20:05:53,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 20:05:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-11-29 20:05:53,701 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 7 [2020-11-29 20:05:53,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:05:53,703 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-11-29 20:05:53,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:05:53,704 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-11-29 20:05:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:05:53,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:05:53,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:05:53,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:05:53,709 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 20:05:53,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:05:53,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1997870251, now seen corresponding path program 1 times [2020-11-29 20:05:53,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:05:53,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199008828] [2020-11-29 20:05:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:05:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:53,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:05:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:05:53,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199008828] [2020-11-29 20:05:53,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:05:53,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:05:53,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061372149] [2020-11-29 20:05:53,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:05:53,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:05:53,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:05:53,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:05:53,868 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 4 states. [2020-11-29 20:05:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:05:53,976 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-11-29 20:05:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:05:53,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 20:05:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:05:53,978 INFO L225 Difference]: With dead ends: 18 [2020-11-29 20:05:53,978 INFO L226 Difference]: Without dead ends: 18 [2020-11-29 20:05:53,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:05:53,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-29 20:05:53,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 20:05:53,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 20:05:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-29 20:05:53,986 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2020-11-29 20:05:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:05:53,987 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-29 20:05:53,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:05:53,988 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-29 20:05:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 20:05:53,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:05:53,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:05:53,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:05:53,991 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr10ENSURES_VIOLATIONMEMORY_LEAK, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2020-11-29 20:05:53,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:05:53,994 INFO L82 PathProgramCache]: Analyzing trace with hash -270538361, now seen corresponding path program 1 times [2020-11-29 20:05:53,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:05:53,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987147355] [2020-11-29 20:05:53,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:05:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:54,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:05:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:05:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:05:54,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987147355] [2020-11-29 20:05:54,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:05:54,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 20:05:54,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356056791] [2020-11-29 20:05:54,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:05:54,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:05:54,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:05:54,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:05:54,181 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-29 20:05:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:05:54,220 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-11-29 20:05:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:05:54,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 20:05:54,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:05:54,222 INFO L225 Difference]: With dead ends: 17 [2020-11-29 20:05:54,222 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:05:54,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:05:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:05:54,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:05:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:05:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:05:54,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 20:05:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:05:54,224 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:05:54,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:05:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:05:54,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:05:54,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:05:54,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:05:54 BoogieIcfgContainer [2020-11-29 20:05:54,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:05:54,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:05:54,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:05:54,233 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:05:54,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:05:52" (3/4) ... [2020-11-29 20:05:54,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:05:54,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-11-29 20:05:54,247 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-11-29 20:05:54,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:05:54,263 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:05:54,264 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:05:54,264 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:05:54,333 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5ec0d005-86f6-4302-ae24-b2d21e636b05/bin/uautomizer/witness.graphml [2020-11-29 20:05:54,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:05:54,341 INFO L168 Benchmark]: Toolchain (without parser) took 2448.86 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.0 MB in the beginning and 84.7 MB in the end (delta: -25.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:05:54,342 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 94.4 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:05:54,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.74 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 72.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:54,346 INFO L168 Benchmark]: Boogie Preprocessor took 47.84 ms. Allocated memory is still 94.4 MB. Free memory was 72.7 MB in the beginning and 71.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:05:54,348 INFO L168 Benchmark]: RCFGBuilder took 637.31 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 58.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:54,349 INFO L168 Benchmark]: TraceAbstraction took 1309.37 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 58.1 MB in the beginning and 87.4 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:05:54,349 INFO L168 Benchmark]: Witness Printer took 101.34 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 84.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:05:54,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 94.4 MB. Free memory is still 75.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.74 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 72.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.84 ms. Allocated memory is still 94.4 MB. Free memory was 72.7 MB in the beginning and 71.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 637.31 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 58.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1309.37 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 58.1 MB in the beginning and 87.4 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 101.34 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 84.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 31 SDslu, 24 SDs, 0 SdLazy, 81 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...