./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.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 639853f2f40cff84155fe09902eff2b5a20185f5 ..................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-11-28 20:10:10,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:10:10,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:10:10,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:10:10,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:10:10,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:10:10,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:10:10,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:10:10,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:10:10,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:10:10,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:10:10,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:10:10,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:10:10,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:10:10,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:10:10,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:10:10,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:10:10,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:10:10,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:10:10,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:10:10,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:10:10,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:10:10,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:10:10,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:10:10,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:10:10,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:10:10,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:10:10,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:10:10,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:10:10,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:10:10,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:10:10,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:10:10,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:10:10,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:10:10,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:10:10,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:10:10,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:10:10,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:10:10,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:10:10,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:10:10,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:10:10,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 20:10:10,474 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:10:10,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:10:10,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:10:10,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:10:10,476 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:10:10,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:10:10,477 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:10:10,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:10:10,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:10:10,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:10:10,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:10:10,478 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:10:10,478 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:10:10,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:10:10,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:10:10,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:10:10,479 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:10:10,480 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:10:10,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:10:10,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:10:10,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:10:10,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:10:10,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:10:10,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:10:10,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:10:10,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:10:10,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:10:10,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:10:10,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 639853f2f40cff84155fe09902eff2b5a20185f5 [2019-11-28 20:10:10,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:10:10,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:10:10,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:10:10,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:10:10,833 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:10:10,834 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2019-11-28 20:10:10,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a51a1060/ed7197d75cc74ab5a45c1b8329974f82/FLAG269736d62 [2019-11-28 20:10:11,400 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:10:11,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2019-11-28 20:10:11,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a51a1060/ed7197d75cc74ab5a45c1b8329974f82/FLAG269736d62 [2019-11-28 20:10:11,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a51a1060/ed7197d75cc74ab5a45c1b8329974f82 [2019-11-28 20:10:11,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:10:11,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:10:11,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:10:11,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:10:11,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:10:11,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:10:11" (1/1) ... [2019-11-28 20:10:11,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a06786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:11, skipping insertion in model container [2019-11-28 20:10:11,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:10:11" (1/1) ... [2019-11-28 20:10:11,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:10:11,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:10:12,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:10:12,069 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:10:12,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:10:12,131 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:10:12,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12 WrapperNode [2019-11-28 20:10:12,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:10:12,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:10:12,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:10:12,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:10:12,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (1/1) ... [2019-11-28 20:10:12,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:10:12,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:10:12,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:10:12,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:10:12,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (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 [2019-11-28 20:10:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:10:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:10:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure bar [2019-11-28 20:10:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-11-28 20:10:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:10:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure bar [2019-11-28 20:10:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:10:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-11-28 20:10:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:10:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:10:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:10:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:10:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:10:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:10:12,740 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:10:12,740 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 20:10:12,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:12 BoogieIcfgContainer [2019-11-28 20:10:12,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:10:12,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:10:12,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:10:12,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:10:12,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:10:11" (1/3) ... [2019-11-28 20:10:12,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5843d5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:10:12, skipping insertion in model container [2019-11-28 20:10:12,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:10:12" (2/3) ... [2019-11-28 20:10:12,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5843d5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:10:12, skipping insertion in model container [2019-11-28 20:10:12,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:12" (3/3) ... [2019-11-28 20:10:12,751 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_-read.c [2019-11-28 20:10:12,762 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:10:12,770 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2019-11-28 20:10:12,784 INFO L249 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2019-11-28 20:10:12,812 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:10:12,813 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:10:12,813 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:10:12,813 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:10:12,814 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:10:12,814 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:10:12,814 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:10:12,814 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:10:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-11-28 20:10:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:10:12,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:12,844 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:12,844 INFO L410 AbstractCegarLoop]: === Iteration 1 === [barErr1REQUIRES_VIOLATION, barErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:12,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1403638412, now seen corresponding path program 1 times [2019-11-28 20:10:12,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:12,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473456752] [2019-11-28 20:10:12,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:10:13,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473456752] [2019-11-28 20:10:13,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:10:13,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:10:13,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963059780] [2019-11-28 20:10:13,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:10:13,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:10:13,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:10:13,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:10:13,060 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2019-11-28 20:10:13,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:10:13,224 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2019-11-28 20:10:13,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:10:13,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 20:10:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:10:13,234 INFO L225 Difference]: With dead ends: 52 [2019-11-28 20:10:13,235 INFO L226 Difference]: Without dead ends: 49 [2019-11-28 20:10:13,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:10:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-28 20:10:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-28 20:10:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-28 20:10:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2019-11-28 20:10:13,276 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 10 [2019-11-28 20:10:13,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:10:13,276 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2019-11-28 20:10:13,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:10:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2019-11-28 20:10:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:10:13,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:13,278 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:13,278 INFO L410 AbstractCegarLoop]: === Iteration 2 === [barErr1REQUIRES_VIOLATION, barErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:13,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:13,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1403995904, now seen corresponding path program 1 times [2019-11-28 20:10:13,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:13,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368295374] [2019-11-28 20:10:13,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:10:13,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368295374] [2019-11-28 20:10:13,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:10:13,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:10:13,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523657690] [2019-11-28 20:10:13,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:10:13,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:10:13,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:10:13,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:10:13,349 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 4 states. [2019-11-28 20:10:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:10:13,479 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2019-11-28 20:10:13,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:10:13,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:10:13,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:10:13,483 INFO L225 Difference]: With dead ends: 56 [2019-11-28 20:10:13,483 INFO L226 Difference]: Without dead ends: 56 [2019-11-28 20:10:13,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:10:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-28 20:10:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2019-11-28 20:10:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-28 20:10:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2019-11-28 20:10:13,496 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 10 [2019-11-28 20:10:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:10:13,497 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2019-11-28 20:10:13,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:10:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2019-11-28 20:10:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 20:10:13,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:13,498 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:13,498 INFO L410 AbstractCegarLoop]: === Iteration 3 === [barErr1REQUIRES_VIOLATION, barErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:13,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:13,499 INFO L82 PathProgramCache]: Analyzing trace with hash -571487811, now seen corresponding path program 1 times [2019-11-28 20:10:13,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:13,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279016513] [2019-11-28 20:10:13,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:10:13,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279016513] [2019-11-28 20:10:13,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:10:13,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 20:10:13,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508407012] [2019-11-28 20:10:13,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:10:13,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:10:13,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:10:13,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:10:13,631 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 6 states. [2019-11-28 20:10:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:10:13,859 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2019-11-28 20:10:13,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:10:13,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-28 20:10:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:10:13,862 INFO L225 Difference]: With dead ends: 63 [2019-11-28 20:10:13,862 INFO L226 Difference]: Without dead ends: 63 [2019-11-28 20:10:13,863 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:10:13,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-28 20:10:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2019-11-28 20:10:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-11-28 20:10:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2019-11-28 20:10:13,879 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 11 [2019-11-28 20:10:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:10:13,880 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2019-11-28 20:10:13,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:10:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2019-11-28 20:10:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:10:13,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:13,882 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:13,882 INFO L410 AbstractCegarLoop]: === Iteration 4 === [barErr1REQUIRES_VIOLATION, barErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:13,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:13,883 INFO L82 PathProgramCache]: Analyzing trace with hash 57103265, now seen corresponding path program 1 times [2019-11-28 20:10:13,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:13,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559740296] [2019-11-28 20:10:13,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:10:13,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:10:13,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559740296] [2019-11-28 20:10:13,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:10:13,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 20:10:13,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239839052] [2019-11-28 20:10:13,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 20:10:13,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:10:13,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 20:10:13,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-28 20:10:13,989 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 6 states. [2019-11-28 20:10:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:10:14,137 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2019-11-28 20:10:14,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 20:10:14,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-28 20:10:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:10:14,141 INFO L225 Difference]: With dead ends: 55 [2019-11-28 20:10:14,141 INFO L226 Difference]: Without dead ends: 55 [2019-11-28 20:10:14,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-28 20:10:14,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-28 20:10:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-11-28 20:10:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-28 20:10:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2019-11-28 20:10:14,149 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 14 [2019-11-28 20:10:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:10:14,149 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2019-11-28 20:10:14,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 20:10:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2019-11-28 20:10:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 20:10:14,150 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:10:14,151 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:10:14,151 INFO L410 AbstractCegarLoop]: === Iteration 5 === [barErr1REQUIRES_VIOLATION, barErr0REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-11-28 20:10:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:10:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash 57103266, now seen corresponding path program 1 times [2019-11-28 20:10:14,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:10:14,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358592077] [2019-11-28 20:10:14,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:10:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:10:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:10:14,224 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:10:14,224 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:10:14,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:10:14 BoogieIcfgContainer [2019-11-28 20:10:14,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:10:14,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:10:14,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:10:14,255 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:10:14,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:10:12" (3/4) ... [2019-11-28 20:10:14,258 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:10:14,309 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:10:14,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:10:14,312 INFO L168 Benchmark]: Toolchain (without parser) took 2569.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 960.4 MB in the beginning and 991.6 MB in the end (delta: -31.2 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:14,313 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:10:14,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:14,315 INFO L168 Benchmark]: Boogie Preprocessor took 137.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:14,315 INFO L168 Benchmark]: RCFGBuilder took 471.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:14,316 INFO L168 Benchmark]: TraceAbstraction took 1510.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 112.9 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:10:14,317 INFO L168 Benchmark]: Witness Printer took 55.22 ms. Allocated memory is still 1.2 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:10:14,320 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 390.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 137.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 471.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1510.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.6 MB in the end (delta: 112.9 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.22 ms. Allocated memory is still 1.2 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 VAL [b={3:0}, i=0] [L33] COND TRUE i < 100 VAL [b={3:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={3:0}] [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={2:0}, b={3:0}, b={3:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={2:0}, b={3:0}, b={3:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={2:0}] [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={2:0}, b={2:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={2:0}, b={2:0}, i=0, res=0, size=1] [L14] b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 11 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 164 SDtfs, 101 SDslu, 178 SDs, 0 SdLazy, 340 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, 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, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...