./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b1751fe95f9cf655681429038c1cde9e9c074e8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 03:56:01,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:56:01,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:56:01,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:56:01,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:56:01,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:56:01,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:56:01,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:56:01,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:56:01,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:56:01,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:56:01,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:56:01,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:56:01,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:56:01,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:56:01,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:56:01,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:56:01,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:56:01,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:56:01,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:56:01,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:56:01,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:56:01,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:56:01,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:56:01,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:56:01,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:56:01,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:56:01,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:56:01,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:56:01,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:56:01,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:56:01,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:56:01,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:56:01,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:56:01,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:56:01,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:56:01,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:56:01,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:56:01,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:56:01,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:56:01,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:56:01,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:56:01,375 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:56:01,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:56:01,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:56:01,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:56:01,380 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:56:01,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:56:01,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:56:01,381 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:56:01,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:56:01,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:56:01,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:56:01,383 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:56:01,384 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:56:01,384 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:56:01,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:56:01,385 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:56:01,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:56:01,385 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:56:01,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:56:01,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:56:01,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:56:01,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:56:01,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:01,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:56:01,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:56:01,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:56:01,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:56:01,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:56:01,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2020-10-26 03:56:01,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:56:01,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:56:01,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:56:01,909 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:56:01,910 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:56:01,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2020-10-26 03:56:02,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ae15f39/9db46b68e60245a0b1c617ef554523d1/FLAGf6460742c [2020-10-26 03:56:02,747 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:56:02,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2020-10-26 03:56:02,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ae15f39/9db46b68e60245a0b1c617ef554523d1/FLAGf6460742c [2020-10-26 03:56:03,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ae15f39/9db46b68e60245a0b1c617ef554523d1 [2020-10-26 03:56:03,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:56:03,069 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:56:03,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:03,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:56:03,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:56:03,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f762053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03, skipping insertion in model container [2020-10-26 03:56:03,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:56:03,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:56:03,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:03,285 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:56:03,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:03,337 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:56:03,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03 WrapperNode [2020-10-26 03:56:03,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:03,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:56:03,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:56:03,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:56:03,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... [2020-10-26 03:56:03,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:56:03,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:56:03,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:56:03,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:56:03,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:56:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:56:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2020-10-26 03:56:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:56:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-26 03:56:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:56:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:56:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:56:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:56:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:56:03,748 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:56:03,748 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 03:56:03,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:03 BoogieIcfgContainer [2020-10-26 03:56:03,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:56:03,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:56:03,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:56:03,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:56:03,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:56:03" (1/3) ... [2020-10-26 03:56:03,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faa006e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:03, skipping insertion in model container [2020-10-26 03:56:03,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:03" (2/3) ... [2020-10-26 03:56:03,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faa006e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:03, skipping insertion in model container [2020-10-26 03:56:03,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:03" (3/3) ... [2020-10-26 03:56:03,761 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers1-1.c [2020-10-26 03:56:03,778 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:56:03,790 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-26 03:56:03,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-26 03:56:03,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:56:03,881 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:56:03,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:56:03,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:56:03,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:56:03,882 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:56:03,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:56:03,885 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:56:03,919 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-26 03:56:03,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 03:56:03,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:03,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:03,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:03,940 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2020-10-26 03:56:03,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:03,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990396980] [2020-10-26 03:56:03,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:04,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990396980] [2020-10-26 03:56:04,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:56:04,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:56:04,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688199239] [2020-10-26 03:56:04,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:56:04,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:04,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:56:04,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:56:04,263 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2020-10-26 03:56:04,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:04,369 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-26 03:56:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:56:04,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-26 03:56:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:04,381 INFO L225 Difference]: With dead ends: 27 [2020-10-26 03:56:04,381 INFO L226 Difference]: Without dead ends: 24 [2020-10-26 03:56:04,383 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 [2020-10-26 03:56:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-26 03:56:04,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-26 03:56:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-26 03:56:04,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-26 03:56:04,427 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 9 [2020-10-26 03:56:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:04,428 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-26 03:56:04,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:56:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-26 03:56:04,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 03:56:04,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:04,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:04,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:56:04,430 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:04,431 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2020-10-26 03:56:04,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:04,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360549662] [2020-10-26 03:56:04,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:04,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360549662] [2020-10-26 03:56:04,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:56:04,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:56:04,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430405534] [2020-10-26 03:56:04,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:56:04,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:04,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:56:04,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:56:04,538 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 4 states. [2020-10-26 03:56:04,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:04,626 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-26 03:56:04,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:56:04,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-26 03:56:04,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:04,628 INFO L225 Difference]: With dead ends: 27 [2020-10-26 03:56:04,628 INFO L226 Difference]: Without dead ends: 27 [2020-10-26 03:56:04,629 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 [2020-10-26 03:56:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-26 03:56:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-10-26 03:56:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-26 03:56:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-26 03:56:04,636 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2020-10-26 03:56:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:04,636 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-26 03:56:04,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:56:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-26 03:56:04,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 03:56:04,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:04,637 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:04,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:56:04,638 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:04,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:04,639 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2020-10-26 03:56:04,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:04,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99380468] [2020-10-26 03:56:04,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:04,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99380468] [2020-10-26 03:56:04,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179322448] [2020-10-26 03:56:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:04,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-26 03:56:04,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:04,979 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-26 03:56:04,981 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:56:04,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:56:04,992 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:56:04,992 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-26 03:56:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:05,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:05,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2020-10-26 03:56:05,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929804979] [2020-10-26 03:56:05,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:56:05,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:05,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:56:05,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:56:05,033 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2020-10-26 03:56:05,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:05,154 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2020-10-26 03:56:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:56:05,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-26 03:56:05,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:05,156 INFO L225 Difference]: With dead ends: 30 [2020-10-26 03:56:05,157 INFO L226 Difference]: Without dead ends: 30 [2020-10-26 03:56:05,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:56:05,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-26 03:56:05,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2020-10-26 03:56:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-26 03:56:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-26 03:56:05,171 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 12 [2020-10-26 03:56:05,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:05,172 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-26 03:56:05,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:56:05,172 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-26 03:56:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:56:05,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:05,173 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:05,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-26 03:56:05,379 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:05,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1912985381, now seen corresponding path program 2 times [2020-10-26 03:56:05,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:05,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298983974] [2020-10-26 03:56:05,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:05,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:05,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298983974] [2020-10-26 03:56:05,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469035093] [2020-10-26 03:56:05,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:05,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 03:56:05,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:05,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-26 03:56:05,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:05,670 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-26 03:56:05,670 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:56:05,678 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:56:05,678 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:56:05,679 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2020-10-26 03:56:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:05,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:05,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2020-10-26 03:56:05,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713196810] [2020-10-26 03:56:05,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:56:05,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:05,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:56:05,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:56:05,697 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-10-26 03:56:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:05,807 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-26 03:56:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:56:05,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-26 03:56:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:05,809 INFO L225 Difference]: With dead ends: 33 [2020-10-26 03:56:05,809 INFO L226 Difference]: Without dead ends: 33 [2020-10-26 03:56:05,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:56:05,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-26 03:56:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-26 03:56:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-26 03:56:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-26 03:56:05,815 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 15 [2020-10-26 03:56:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:05,816 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-26 03:56:05,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:56:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-26 03:56:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 03:56:05,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:05,817 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:06,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:06,031 INFO L429 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:06,033 INFO L82 PathProgramCache]: Analyzing trace with hash 173545234, now seen corresponding path program 3 times [2020-10-26 03:56:06,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:06,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724927595] [2020-10-26 03:56:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:06,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724927595] [2020-10-26 03:56:06,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333615245] [2020-10-26 03:56:06,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:06,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-26 03:56:06,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:06,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-26 03:56:06,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:06,248 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2020-10-26 03:56:06,248 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:56:06,254 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:56:06,255 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:56:06,255 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-26 03:56:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 03:56:06,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-26 03:56:06,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2020-10-26 03:56:06,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534090668] [2020-10-26 03:56:06,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:56:06,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:06,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:56:06,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:56:06,357 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2020-10-26 03:56:06,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:06,397 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-26 03:56:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:56:06,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-26 03:56:06,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:06,399 INFO L225 Difference]: With dead ends: 31 [2020-10-26 03:56:06,399 INFO L226 Difference]: Without dead ends: 31 [2020-10-26 03:56:06,400 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:56:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-26 03:56:06,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2020-10-26 03:56:06,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-26 03:56:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-26 03:56:06,405 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 18 [2020-10-26 03:56:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:06,405 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-26 03:56:06,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:56:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-26 03:56:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 03:56:06,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:06,406 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:06,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:06,620 INFO L429 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:06,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383288, now seen corresponding path program 1 times [2020-10-26 03:56:06,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:06,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418530920] [2020-10-26 03:56:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:06,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418530920] [2020-10-26 03:56:06,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305133199] [2020-10-26 03:56:06,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:06,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 03:56:06,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:06,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:06,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 8 [2020-10-26 03:56:06,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864676675] [2020-10-26 03:56:06,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:56:06,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:56:06,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:56:06,830 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 8 states. [2020-10-26 03:56:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:06,933 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-10-26 03:56:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:56:06,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-26 03:56:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:06,934 INFO L225 Difference]: With dead ends: 35 [2020-10-26 03:56:06,934 INFO L226 Difference]: Without dead ends: 35 [2020-10-26 03:56:06,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:56:06,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-26 03:56:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-10-26 03:56:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-26 03:56:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-26 03:56:06,940 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2020-10-26 03:56:06,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:06,941 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-26 03:56:06,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:56:06,941 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-26 03:56:06,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 03:56:06,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:06,942 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:07,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:07,154 INFO L429 AbstractCegarLoop]: === Iteration 7 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:07,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:07,155 INFO L82 PathProgramCache]: Analyzing trace with hash -149204609, now seen corresponding path program 2 times [2020-10-26 03:56:07,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:07,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759176890] [2020-10-26 03:56:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:07,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759176890] [2020-10-26 03:56:07,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878865829] [2020-10-26 03:56:07,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:07,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-26 03:56:07,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:07,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 03:56:07,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:07,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:07,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 9 [2020-10-26 03:56:07,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654296922] [2020-10-26 03:56:07,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:56:07,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:07,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:56:07,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:56:07,372 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-10-26 03:56:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:07,475 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2020-10-26 03:56:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 03:56:07,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-10-26 03:56:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:07,477 INFO L225 Difference]: With dead ends: 38 [2020-10-26 03:56:07,477 INFO L226 Difference]: Without dead ends: 38 [2020-10-26 03:56:07,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:56:07,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-26 03:56:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-10-26 03:56:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-26 03:56:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-26 03:56:07,483 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 26 [2020-10-26 03:56:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:07,484 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-26 03:56:07,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:56:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-26 03:56:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-26 03:56:07,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:07,485 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:07,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-26 03:56:07,698 INFO L429 AbstractCegarLoop]: === Iteration 8 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:07,700 INFO L82 PathProgramCache]: Analyzing trace with hash -578344216, now seen corresponding path program 3 times [2020-10-26 03:56:07,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:07,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811356055] [2020-10-26 03:56:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:07,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811356055] [2020-10-26 03:56:07,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571455135] [2020-10-26 03:56:07,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:07,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-26 03:56:07,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:07,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 03:56:07,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:07,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:07,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 10 [2020-10-26 03:56:07,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019053072] [2020-10-26 03:56:07,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 03:56:07,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:07,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 03:56:07,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:56:07,953 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 10 states. [2020-10-26 03:56:08,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:08,086 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2020-10-26 03:56:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:56:08,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-26 03:56:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:08,087 INFO L225 Difference]: With dead ends: 41 [2020-10-26 03:56:08,087 INFO L226 Difference]: Without dead ends: 41 [2020-10-26 03:56:08,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:56:08,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-26 03:56:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-10-26 03:56:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-26 03:56:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-26 03:56:08,093 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 29 [2020-10-26 03:56:08,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:08,093 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-26 03:56:08,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 03:56:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-26 03:56:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 03:56:08,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:08,095 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:08,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:08,305 INFO L429 AbstractCegarLoop]: === Iteration 9 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:08,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1041263839, now seen corresponding path program 4 times [2020-10-26 03:56:08,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:08,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845463961] [2020-10-26 03:56:08,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:08,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:08,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845463961] [2020-10-26 03:56:08,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092350066] [2020-10-26 03:56:08,491 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:08,552 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-26 03:56:08,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:08,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 03:56:08,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:08,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:08,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 11 [2020-10-26 03:56:08,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923108447] [2020-10-26 03:56:08,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:56:08,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:08,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:56:08,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:56:08,580 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 11 states. [2020-10-26 03:56:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:08,718 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-10-26 03:56:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:56:08,719 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-26 03:56:08,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:08,720 INFO L225 Difference]: With dead ends: 44 [2020-10-26 03:56:08,720 INFO L226 Difference]: Without dead ends: 44 [2020-10-26 03:56:08,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:56:08,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-26 03:56:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-10-26 03:56:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-26 03:56:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-26 03:56:08,725 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 32 [2020-10-26 03:56:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:08,726 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-26 03:56:08,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:56:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-26 03:56:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 03:56:08,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:08,728 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:08,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:08,939 INFO L429 AbstractCegarLoop]: === Iteration 10 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1122227080, now seen corresponding path program 5 times [2020-10-26 03:56:08,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:08,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915240941] [2020-10-26 03:56:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:09,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915240941] [2020-10-26 03:56:09,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106143017] [2020-10-26 03:56:09,143 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:09,224 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2020-10-26 03:56:09,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:09,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-26 03:56:09,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:09,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:09,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 12 [2020-10-26 03:56:09,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915624944] [2020-10-26 03:56:09,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:56:09,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:09,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:56:09,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:56:09,253 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 12 states. [2020-10-26 03:56:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:09,403 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-10-26 03:56:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 03:56:09,403 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2020-10-26 03:56:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:09,404 INFO L225 Difference]: With dead ends: 47 [2020-10-26 03:56:09,404 INFO L226 Difference]: Without dead ends: 47 [2020-10-26 03:56:09,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:56:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-26 03:56:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2020-10-26 03:56:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-26 03:56:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-26 03:56:09,409 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 35 [2020-10-26 03:56:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:09,410 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-26 03:56:09,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:56:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-26 03:56:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 03:56:09,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:09,412 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:09,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-26 03:56:09,622 INFO L429 AbstractCegarLoop]: === Iteration 11 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:09,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:09,623 INFO L82 PathProgramCache]: Analyzing trace with hash -673480641, now seen corresponding path program 6 times [2020-10-26 03:56:09,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:09,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463449046] [2020-10-26 03:56:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:09,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463449046] [2020-10-26 03:56:09,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400156992] [2020-10-26 03:56:09,871 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:09,967 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2020-10-26 03:56:09,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-26 03:56:09,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 03:56:09,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:09,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:09,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 13 [2020-10-26 03:56:09,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328531345] [2020-10-26 03:56:09,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 03:56:09,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:09,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 03:56:09,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:56:10,000 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 13 states. [2020-10-26 03:56:10,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:10,189 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2020-10-26 03:56:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 03:56:10,190 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2020-10-26 03:56:10,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:10,191 INFO L225 Difference]: With dead ends: 50 [2020-10-26 03:56:10,192 INFO L226 Difference]: Without dead ends: 50 [2020-10-26 03:56:10,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:56:10,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-26 03:56:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-10-26 03:56:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-26 03:56:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-26 03:56:10,200 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 38 [2020-10-26 03:56:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:10,201 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-26 03:56:10,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 03:56:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-26 03:56:10,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-26 03:56:10,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:10,202 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:10,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:10,413 INFO L429 AbstractCegarLoop]: === Iteration 12 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:10,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1510442024, now seen corresponding path program 7 times [2020-10-26 03:56:10,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:10,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572349554] [2020-10-26 03:56:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:10,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:56:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:10,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-26 03:56:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:10,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572349554] [2020-10-26 03:56:10,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884769220] [2020-10-26 03:56:10,649 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:56:10,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-26 03:56:10,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:56:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:56:10,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:56:10,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 14 [2020-10-26 03:56:10,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657816063] [2020-10-26 03:56:10,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 03:56:10,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:56:10,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 03:56:10,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:56:10,774 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 14 states. [2020-10-26 03:56:10,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:56:10,923 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-10-26 03:56:10,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 03:56:10,924 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-26 03:56:10,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:56:10,925 INFO L225 Difference]: With dead ends: 51 [2020-10-26 03:56:10,925 INFO L226 Difference]: Without dead ends: 51 [2020-10-26 03:56:10,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:56:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-26 03:56:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-26 03:56:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-26 03:56:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-26 03:56:10,930 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 41 [2020-10-26 03:56:10,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:56:10,931 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-26 03:56:10,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 03:56:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-26 03:56:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 03:56:10,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:56:10,932 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:56:11,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:56:11,144 INFO L429 AbstractCegarLoop]: === Iteration 13 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2020-10-26 03:56:11,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:56:11,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1709012065, now seen corresponding path program 8 times [2020-10-26 03:56:11,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:56:11,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264260239] [2020-10-26 03:56:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:56:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:56:11,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:56:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:56:11,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:56:11,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:56:11,212 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:56:11,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 03:56:11,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:56:11 BoogieIcfgContainer [2020-10-26 03:56:11,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:56:11,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:56:11,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:56:11,254 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:56:11,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:03" (3/4) ... [2020-10-26 03:56:11,257 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:56:11,340 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:56:11,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:56:11,345 INFO L168 Benchmark]: Toolchain (without parser) took 8280.36 ms. Allocated memory was 39.8 MB in the beginning and 104.9 MB in the end (delta: 65.0 MB). Free memory was 24.1 MB in the beginning and 65.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,346 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 39.8 MB. Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:56:11,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.87 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 23.5 MB in the beginning and 32.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,348 INFO L168 Benchmark]: Boogie Preprocessor took 38.24 ms. Allocated memory is still 48.2 MB. Free memory was 32.5 MB in the beginning and 31.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,348 INFO L168 Benchmark]: RCFGBuilder took 371.67 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 29.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,349 INFO L168 Benchmark]: TraceAbstraction took 7501.52 ms. Allocated memory was 48.2 MB in the beginning and 104.9 MB in the end (delta: 56.6 MB). Free memory was 29.2 MB in the beginning and 67.8 MB in the end (delta: -38.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,352 INFO L168 Benchmark]: Witness Printer took 89.98 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:11,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 39.8 MB. Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.87 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 23.5 MB in the beginning and 32.5 MB in the end (delta: -9.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.24 ms. Allocated memory is still 48.2 MB. Free memory was 32.5 MB in the beginning and 31.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 371.67 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 29.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7501.52 ms. Allocated memory was 48.2 MB in the beginning and 104.9 MB in the end (delta: 56.6 MB). Free memory was 29.2 MB in the beginning and 67.8 MB in the end (delta: -38.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Witness Printer took 89.98 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] CALL, EXPR getNumbers() [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=0] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=1] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=2] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=3] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=4] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=5] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=6] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=7] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=8] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L10] COND TRUE i < 10 VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L11] array[i] = i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=9] [L10] ++i VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=10] [L10] COND FALSE !(i < 10) VAL [alloca(10 * sizeof(int))={11:0}, array={11:0}, i=10] [L14] return array; [L19] RET, EXPR getNumbers() VAL [getNumbers()={11:0}] [L19] int *numbers = getNumbers(); [L21] int i = 0; VAL [i=0, numbers={11:0}] [L21] COND TRUE i < 10 [L22] numbers + i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.3s, OverallIterations: 13, TraceHistogramMax: 10, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 235 SDtfs, 115 SDslu, 1005 SDs, 0 SdLazy, 708 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 383 GetRequests, 289 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=12, 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, 12 MinimizatonAttempts, 16 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 600 NumberOfCodeBlocks, 594 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 48672 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1247 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 22 InterpolantComputations, 3 PerfectInterpolantSequences, 15/846 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 incorrect! Received shutdown request...