./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d 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_1.3.100.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/memsafety-ext3/derefInLoop1.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 aa3ae4378a5284e50be7191d52900376e96b0fdc ......................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-9a8b2e8 [2020-10-20 06:16:47,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:16:47,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:16:47,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:16:47,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:16:47,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:16:47,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:16:47,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:16:47,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:16:47,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:16:47,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:16:47,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:16:47,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:16:47,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:16:47,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:16:47,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:16:47,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:16:47,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:16:47,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:16:47,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:16:47,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:16:47,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:16:47,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:16:47,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:16:47,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:16:47,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:16:47,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:16:47,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:16:47,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:16:47,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:16:47,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:16:47,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:16:47,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:16:47,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:16:47,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:16:47,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:16:47,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:16:47,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:16:47,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:16:47,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:16:47,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:16:47,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:16:47,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:16:47,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:16:47,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:16:47,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:16:47,992 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:16:47,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:16:47,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:16:47,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:16:47,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:16:47,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:16:47,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:16:47,994 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:16:47,994 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:16:47,994 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:16:47,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:16:47,995 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:16:47,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:16:47,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:16:47,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:16:47,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:16:47,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:16:47,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:16:47,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:16:47,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:16:47,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:16:47,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:16:47,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:16:47,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:16:47,998 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 -> aa3ae4378a5284e50be7191d52900376e96b0fdc [2020-10-20 06:16:48,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:16:48,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:16:48,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:16:48,215 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:16:48,216 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:16:48,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2020-10-20 06:16:48,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1400a9c4/86a4f423a8134e5eb2cb543ff3f6eeb0/FLAG555d3600c [2020-10-20 06:16:48,783 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:16:48,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2020-10-20 06:16:48,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1400a9c4/86a4f423a8134e5eb2cb543ff3f6eeb0/FLAG555d3600c [2020-10-20 06:16:49,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1400a9c4/86a4f423a8134e5eb2cb543ff3f6eeb0 [2020-10-20 06:16:49,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:16:49,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:16:49,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:49,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:16:49,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:16:49,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118af435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49, skipping insertion in model container [2020-10-20 06:16:49,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:16:49,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:16:49,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:49,529 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:16:49,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:49,556 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:16:49,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49 WrapperNode [2020-10-20 06:16:49,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:49,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:16:49,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:16:49,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:16:49,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (1/1) ... [2020-10-20 06:16:49,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:16:49,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:16:49,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:16:49,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:16:49,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (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 [2020-10-20 06:16:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:16:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:16:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:16:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:16:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:16:49,854 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:16:49,855 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:16:49,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:49 BoogieIcfgContainer [2020-10-20 06:16:49,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:16:49,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:16:49,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:16:49,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:16:49,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:16:49" (1/3) ... [2020-10-20 06:16:49,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca302f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:49, skipping insertion in model container [2020-10-20 06:16:49,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:49" (2/3) ... [2020-10-20 06:16:49,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dca302f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:49, skipping insertion in model container [2020-10-20 06:16:49,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:49" (3/3) ... [2020-10-20 06:16:49,865 INFO L111 eAbstractionObserver]: Analyzing ICFG derefInLoop1.c [2020-10-20 06:16:49,878 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:16:49,888 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 06:16:49,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 06:16:49,936 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:16:49,936 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:16:49,936 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:16:49,937 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:16:49,937 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:16:49,937 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:16:49,937 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:16:49,937 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:16:49,956 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-20 06:16:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:49,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:49,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:49,977 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 06:16:49,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:49,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1075805963, now seen corresponding path program 1 times [2020-10-20 06:16:49,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:49,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193782176] [2020-10-20 06:16:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:50,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193782176] [2020-10-20 06:16:50,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:50,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:16:50,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532685984] [2020-10-20 06:16:50,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:16:50,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:50,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:16:50,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:50,191 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-10-20 06:16:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:50,268 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-10-20 06:16:50,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:16:50,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 06:16:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:50,280 INFO L225 Difference]: With dead ends: 21 [2020-10-20 06:16:50,281 INFO L226 Difference]: Without dead ends: 16 [2020-10-20 06:16:50,282 INFO L677 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 [2020-10-20 06:16:50,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-20 06:16:50,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-20 06:16:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 06:16:50,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-20 06:16:50,316 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2020-10-20 06:16:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:50,316 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-20 06:16:50,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:16:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-20 06:16:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:50,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:50,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:50,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:16:50,318 INFO L429 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 06:16:50,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:50,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1075817783, now seen corresponding path program 1 times [2020-10-20 06:16:50,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:50,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314800789] [2020-10-20 06:16:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:50,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314800789] [2020-10-20 06:16:50,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:50,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:16:50,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064336259] [2020-10-20 06:16:50,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:16:50,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:50,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:16:50,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:16:50,389 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2020-10-20 06:16:50,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:50,451 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-10-20 06:16:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:16:50,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-20 06:16:50,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:50,453 INFO L225 Difference]: With dead ends: 18 [2020-10-20 06:16:50,453 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 06:16:50,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:16:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 06:16:50,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-20 06:16:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 06:16:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-20 06:16:50,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2020-10-20 06:16:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:50,460 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-20 06:16:50,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:16:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-20 06:16:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:16:50,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:50,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:50,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:16:50,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 06:16:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash -643356833, now seen corresponding path program 1 times [2020-10-20 06:16:50,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:50,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454036489] [2020-10-20 06:16:50,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:50,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454036489] [2020-10-20 06:16:50,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139786646] [2020-10-20 06:16:50,523 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 [2020-10-20 06:16:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:50,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:16:50,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:50,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:50,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:16:50,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2020-10-20 06:16:50,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719453226] [2020-10-20 06:16:50,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:16:50,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:50,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:16:50,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:16:50,646 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-10-20 06:16:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:50,717 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-10-20 06:16:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:16:50,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-20 06:16:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:50,718 INFO L225 Difference]: With dead ends: 19 [2020-10-20 06:16:50,719 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 06:16:50,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:16:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 06:16:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 06:16:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 06:16:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-20 06:16:50,724 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2020-10-20 06:16:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:50,724 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-20 06:16:50,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:16:50,725 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-20 06:16:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:16:50,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:50,726 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:50,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-20 06:16:50,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-10-20 06:16:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:50,937 INFO L82 PathProgramCache]: Analyzing trace with hash -643355199, now seen corresponding path program 1 times [2020-10-20 06:16:50,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:50,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171992904] [2020-10-20 06:16:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:50,962 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:50,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:50,996 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:16:50,997 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:16:50,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:16:51,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:16:51 BoogieIcfgContainer [2020-10-20 06:16:51,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:16:51,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:16:51,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:16:51,023 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:16:51,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:49" (3/4) ... [2020-10-20 06:16:51,026 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:16:51,071 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:16:51,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:16:51,074 INFO L168 Benchmark]: Toolchain (without parser) took 1848.20 ms. Allocated memory was 37.2 MB in the beginning and 48.8 MB in the end (delta: 11.5 MB). Free memory was 19.4 MB in the beginning and 20.4 MB in the end (delta: -1.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,075 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.8 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.76 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.5 MB in the beginning and 27.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,077 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 45.1 MB. Free memory was 27.5 MB in the beginning and 25.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,078 INFO L168 Benchmark]: RCFGBuilder took 271.22 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 25.8 MB in the beginning and 26.7 MB in the end (delta: -899.8 kB). Peak memory consumption was 13.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,079 INFO L168 Benchmark]: TraceAbstraction took 1164.25 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 26.1 MB in the beginning and 22.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,080 INFO L168 Benchmark]: Witness Printer took 49.59 ms. Allocated memory is still 48.8 MB. Free memory was 22.5 MB in the beginning and 20.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:51,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.8 MB in the beginning and 10.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 324.76 ms. Allocated memory was 37.2 MB in the beginning and 45.1 MB in the end (delta: 7.9 MB). Free memory was 18.5 MB in the beginning and 27.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 45.1 MB. Free memory was 27.5 MB in the beginning and 25.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 271.22 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 25.8 MB in the beginning and 26.7 MB in the end (delta: -899.8 kB). Peak memory consumption was 13.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1164.25 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 26.1 MB in the beginning and 22.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * Witness Printer took 49.59 ms. Allocated memory is still 48.8 MB. Free memory was 22.5 MB in the beginning and 20.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; VAL [i=0] [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={3:0}, i=0] [L5] COND TRUE i == 0 [L6] p = a VAL [a={3:0}, i=0, p={3:0}] [L3] i++ [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={2:0}, i=1, p={3:0}] [L5] COND FALSE !(i == 0) VAL [a={2:0}, i=1, p={3:0}] [L8] p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 13 SDslu, 34 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 821 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...