./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ab87ef7cc863b18816ae397a50b6c6e9fb3e753d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 12:17:57,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 12:17:57,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 12:17:57,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 12:17:57,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 12:17:57,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 12:17:57,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 12:17:57,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 12:17:57,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 12:17:57,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 12:17:57,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 12:17:57,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 12:17:57,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 12:17:57,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 12:17:57,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 12:17:57,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 12:17:57,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 12:17:57,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 12:17:57,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 12:17:57,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 12:17:57,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 12:17:57,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 12:17:57,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 12:17:57,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 12:17:57,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 12:17:57,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 12:17:57,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 12:17:57,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 12:17:57,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 12:17:57,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 12:17:57,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 12:17:57,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 12:17:57,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 12:17:57,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 12:17:57,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 12:17:57,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 12:17:57,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 12:17:57,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 12:17:57,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 12:17:57,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 12:17:57,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 12:17:57,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 12:17:57,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 12:17:57,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 12:17:57,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 12:17:57,400 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 12:17:57,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 12:17:57,400 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 12:17:57,400 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 12:17:57,400 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 12:17:57,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 12:17:57,401 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 12:17:57,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 12:17:57,401 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 12:17:57,401 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 12:17:57,401 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 12:17:57,402 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 12:17:57,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 12:17:57,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 12:17:57,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 12:17:57,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 12:17:57,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 12:17:57,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 12:17:57,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 12:17:57,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 12:17:57,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 12:17:57,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 12:17:57,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 12:17:57,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 12:17:57,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:17:57,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 12:17:57,406 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab87ef7cc863b18816ae397a50b6c6e9fb3e753d [2020-12-09 12:17:57,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 12:17:57,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 12:17:57,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 12:17:57,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 12:17:57,609 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 12:17:57,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/../../sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-09 12:17:57,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/data/2a95b3425/28b74548609a4b14848ad307e7af05d7/FLAGecdc0055c [2020-12-09 12:17:58,083 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 12:17:58,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/sv-benchmarks/c/memory-alloca/c.03-alloca-2.i [2020-12-09 12:17:58,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/data/2a95b3425/28b74548609a4b14848ad307e7af05d7/FLAGecdc0055c [2020-12-09 12:17:58,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/data/2a95b3425/28b74548609a4b14848ad307e7af05d7 [2020-12-09 12:17:58,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 12:17:58,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 12:17:58,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 12:17:58,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 12:17:58,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 12:17:58,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b410a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58, skipping insertion in model container [2020-12-09 12:17:58,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 12:17:58,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 12:17:58,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:17:58,368 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 12:17:58,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:17:58,442 INFO L208 MainTranslator]: Completed translation [2020-12-09 12:17:58,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58 WrapperNode [2020-12-09 12:17:58,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 12:17:58,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 12:17:58,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 12:17:58,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 12:17:58,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 12:17:58,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 12:17:58,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 12:17:58,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 12:17:58,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... [2020-12-09 12:17:58,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 12:17:58,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 12:17:58,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 12:17:58,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 12:17:58,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:17:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 12:17:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 12:17:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 12:17:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 12:17:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 12:17:58,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 12:17:58,898 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 12:17:58,899 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 12:17:58,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:58 BoogieIcfgContainer [2020-12-09 12:17:58,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 12:17:58,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 12:17:58,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 12:17:58,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 12:17:58,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:17:58" (1/3) ... [2020-12-09 12:17:58,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30aaed04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:58, skipping insertion in model container [2020-12-09 12:17:58,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:17:58" (2/3) ... [2020-12-09 12:17:58,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30aaed04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:17:58, skipping insertion in model container [2020-12-09 12:17:58,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:58" (3/3) ... [2020-12-09 12:17:58,909 INFO L111 eAbstractionObserver]: Analyzing ICFG c.03-alloca-2.i [2020-12-09 12:17:58,922 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 12:17:58,925 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 31 error locations. [2020-12-09 12:17:58,932 INFO L253 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2020-12-09 12:17:58,947 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 12:17:58,947 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 12:17:58,947 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 12:17:58,947 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 12:17:58,948 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 12:17:58,948 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 12:17:58,948 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 12:17:58,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 12:17:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-12-09 12:17:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 12:17:58,963 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:58,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 12:17:58,964 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:58,968 INFO L82 PathProgramCache]: Analyzing trace with hash 3321, now seen corresponding path program 1 times [2020-12-09 12:17:58,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:58,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806044918] [2020-12-09 12:17:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806044918] [2020-12-09 12:17:59,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959624050] [2020-12-09 12:17:59,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,141 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 3 states. [2020-12-09 12:17:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,199 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-12-09 12:17:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,200 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 12:17:59,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,206 INFO L225 Difference]: With dead ends: 46 [2020-12-09 12:17:59,206 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 12:17:59,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 12:17:59,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 12:17:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 12:17:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-12-09 12:17:59,236 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 2 [2020-12-09 12:17:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,236 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-12-09 12:17:59,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-12-09 12:17:59,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 12:17:59,237 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 12:17:59,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 12:17:59,237 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,238 INFO L82 PathProgramCache]: Analyzing trace with hash 3322, now seen corresponding path program 1 times [2020-12-09 12:17:59,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868871872] [2020-12-09 12:17:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868871872] [2020-12-09 12:17:59,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373712158] [2020-12-09 12:17:59,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,300 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 3 states. [2020-12-09 12:17:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,338 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-12-09 12:17:59,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 12:17:59,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,339 INFO L225 Difference]: With dead ends: 40 [2020-12-09 12:17:59,339 INFO L226 Difference]: Without dead ends: 40 [2020-12-09 12:17:59,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-09 12:17:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-09 12:17:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-09 12:17:59,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2020-12-09 12:17:59,344 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 2 [2020-12-09 12:17:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,344 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2020-12-09 12:17:59,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2020-12-09 12:17:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 12:17:59,345 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 12:17:59,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 12:17:59,345 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,346 INFO L82 PathProgramCache]: Analyzing trace with hash 102927, now seen corresponding path program 1 times [2020-12-09 12:17:59,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144799808] [2020-12-09 12:17:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144799808] [2020-12-09 12:17:59,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506142013] [2020-12-09 12:17:59,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,387 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 3 states. [2020-12-09 12:17:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,419 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-12-09 12:17:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 12:17:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,420 INFO L225 Difference]: With dead ends: 38 [2020-12-09 12:17:59,420 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 12:17:59,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 12:17:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-09 12:17:59,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-09 12:17:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-12-09 12:17:59,423 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 3 [2020-12-09 12:17:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,423 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-12-09 12:17:59,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-12-09 12:17:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 12:17:59,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 12:17:59,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 12:17:59,424 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash 102928, now seen corresponding path program 1 times [2020-12-09 12:17:59,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265205908] [2020-12-09 12:17:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265205908] [2020-12-09 12:17:59,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289033172] [2020-12-09 12:17:59,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,459 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 3 states. [2020-12-09 12:17:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,488 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2020-12-09 12:17:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-09 12:17:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,489 INFO L225 Difference]: With dead ends: 36 [2020-12-09 12:17:59,489 INFO L226 Difference]: Without dead ends: 36 [2020-12-09 12:17:59,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-09 12:17:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-09 12:17:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-09 12:17:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-12-09 12:17:59,493 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 3 [2020-12-09 12:17:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,494 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-12-09 12:17:59,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-12-09 12:17:59,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 12:17:59,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 12:17:59,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 12:17:59,495 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,495 INFO L82 PathProgramCache]: Analyzing trace with hash 3190716, now seen corresponding path program 1 times [2020-12-09 12:17:59,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780886594] [2020-12-09 12:17:59,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780886594] [2020-12-09 12:17:59,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997476820] [2020-12-09 12:17:59,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,530 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 3 states. [2020-12-09 12:17:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,567 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2020-12-09 12:17:59,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 12:17:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,568 INFO L225 Difference]: With dead ends: 32 [2020-12-09 12:17:59,568 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 12:17:59,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 12:17:59,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-09 12:17:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 12:17:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-12-09 12:17:59,571 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 4 [2020-12-09 12:17:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,571 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-12-09 12:17:59,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-12-09 12:17:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 12:17:59,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 12:17:59,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 12:17:59,572 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash 3190717, now seen corresponding path program 1 times [2020-12-09 12:17:59,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938687793] [2020-12-09 12:17:59,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938687793] [2020-12-09 12:17:59,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419857772] [2020-12-09 12:17:59,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,621 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 3 states. [2020-12-09 12:17:59,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,651 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-12-09 12:17:59,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 12:17:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,652 INFO L225 Difference]: With dead ends: 28 [2020-12-09 12:17:59,652 INFO L226 Difference]: Without dead ends: 28 [2020-12-09 12:17:59,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-09 12:17:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-09 12:17:59,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-09 12:17:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-12-09 12:17:59,655 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 4 [2020-12-09 12:17:59,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,656 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-12-09 12:17:59,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-12-09 12:17:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:17:59,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:17:59,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 12:17:59,657 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,657 INFO L82 PathProgramCache]: Analyzing trace with hash 98912178, now seen corresponding path program 1 times [2020-12-09 12:17:59,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175576078] [2020-12-09 12:17:59,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175576078] [2020-12-09 12:17:59,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 12:17:59,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105419387] [2020-12-09 12:17:59,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 12:17:59,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 12:17:59,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,684 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 3 states. [2020-12-09 12:17:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,712 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2020-12-09 12:17:59,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 12:17:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,713 INFO L225 Difference]: With dead ends: 24 [2020-12-09 12:17:59,713 INFO L226 Difference]: Without dead ends: 24 [2020-12-09 12:17:59,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 12:17:59,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-09 12:17:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-09 12:17:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-09 12:17:59,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-09 12:17:59,716 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 5 [2020-12-09 12:17:59,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,716 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-09 12:17:59,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 12:17:59,716 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-09 12:17:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:17:59,717 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:17:59,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 12:17:59,717 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,718 INFO L82 PathProgramCache]: Analyzing trace with hash 98912179, now seen corresponding path program 1 times [2020-12-09 12:17:59,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124079892] [2020-12-09 12:17:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:17:59,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124079892] [2020-12-09 12:17:59,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:17:59,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 12:17:59,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700197287] [2020-12-09 12:17:59,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 12:17:59,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:17:59,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 12:17:59,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 12:17:59,758 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 4 states. [2020-12-09 12:17:59,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:17:59,781 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-12-09 12:17:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 12:17:59,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 12:17:59,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:17:59,782 INFO L225 Difference]: With dead ends: 20 [2020-12-09 12:17:59,782 INFO L226 Difference]: Without dead ends: 20 [2020-12-09 12:17:59,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 12:17:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-09 12:17:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-09 12:17:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-09 12:17:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-09 12:17:59,784 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2020-12-09 12:17:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:17:59,784 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-09 12:17:59,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 12:17:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-09 12:17:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 12:17:59,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:17:59,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:17:59,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 12:17:59,785 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-12-09 12:17:59,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:17:59,786 INFO L82 PathProgramCache]: Analyzing trace with hash 946801889, now seen corresponding path program 1 times [2020-12-09 12:17:59,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:17:59,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56149861] [2020-12-09 12:17:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:17:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:17:59,968 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 32 [2020-12-09 12:18:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:18:00,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56149861] [2020-12-09 12:18:00,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:18:00,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 12:18:00,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680287847] [2020-12-09 12:18:00,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 12:18:00,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:18:00,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 12:18:00,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 12:18:00,082 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2020-12-09 12:18:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:18:00,133 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-09 12:18:00,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 12:18:00,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 12:18:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:18:00,133 INFO L225 Difference]: With dead ends: 19 [2020-12-09 12:18:00,133 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 12:18:00,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 12:18:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 12:18:00,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 12:18:00,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 12:18:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 12:18:00,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 12:18:00,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:18:00,135 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 12:18:00,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 12:18:00,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 12:18:00,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 12:18:00,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 12:18:00,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:18:00 BoogieIcfgContainer [2020-12-09 12:18:00,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 12:18:00,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 12:18:00,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 12:18:00,140 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 12:18:00,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:17:58" (3/4) ... [2020-12-09 12:18:00,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 12:18:00,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-09 12:18:00,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 12:18:00,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 12:18:00,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c37e6b35-80fd-4dc5-9b12-27302c6fb1a7/bin/utaipan/witness.graphml [2020-12-09 12:18:00,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 12:18:00,193 INFO L168 Benchmark]: Toolchain (without parser) took 2086.58 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 77.6 MB in the beginning and 73.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,193 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 71.3 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:18:00,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.32 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 77.5 MB in the end (delta: 102.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.71 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 75.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,194 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 74.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,195 INFO L168 Benchmark]: RCFGBuilder took 398.24 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 45.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,195 INFO L168 Benchmark]: TraceAbstraction took 1237.13 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 45.2 MB in the beginning and 77.0 MB in the end (delta: -31.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:18:00,195 INFO L168 Benchmark]: Witness Printer took 51.96 ms. Allocated memory is still 136.3 MB. Free memory was 77.0 MB in the beginning and 73.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 12:18:00,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 71.3 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.32 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 77.5 MB in the end (delta: 102.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.71 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 75.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.76 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 74.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 398.24 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 45.6 MB in the end (delta: 28.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1237.13 ms. Allocated memory was 111.1 MB in the beginning and 136.3 MB in the end (delta: 25.2 MB). Free memory was 45.2 MB in the beginning and 77.0 MB in the end (delta: -31.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 51.96 ms. Allocated memory is still 136.3 MB. Free memory was 77.0 MB in the beginning and 73.9 MB in the end (delta: 3.1 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: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 532]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 521]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 528]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 530]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 522]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 526]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 31 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 264 SDslu, 4 SDs, 0 SdLazy, 220 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 5202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...