./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab 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/termination-crafted/SyntaxSupportPointer01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash f2a8d3919c0496882213752e07135061fdbafdf6 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:47:22,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:47:22,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:47:22,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:47:22,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:47:22,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:47:22,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:47:22,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:47:22,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:47:22,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:47:22,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:47:22,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:47:22,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:47:22,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:47:22,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:47:22,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:47:22,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:47:22,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:47:22,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:47:22,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:47:22,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:47:22,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:47:22,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:47:22,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:47:22,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:47:22,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:47:22,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:47:22,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:47:22,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:47:22,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:47:22,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:47:22,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:47:22,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:47:22,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:47:22,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:47:22,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:47:22,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:47:22,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:47:22,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:47:22,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:47:22,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:47:22,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-28 02:47:22,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:47:22,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:47:22,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:47:22,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:47:22,977 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:47:22,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:47:22,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:47:22,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:47:22,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:47:22,979 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:47:22,980 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:47:22,980 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:47:22,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:47:22,981 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:47:22,981 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:47:22,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:47:22,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:47:22,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:47:22,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:47:22,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:47:22,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:47:22,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:47:22,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:47:22,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:47:22,984 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2a8d3919c0496882213752e07135061fdbafdf6 [2019-11-28 02:47:23,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:47:23,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:47:23,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:47:23,301 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:47:23,301 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:47:23,302 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-11-28 02:47:23,364 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77c41d07/1ce726d71f984f9a89f4f22e9ded1d8f/FLAG8abfad958 [2019-11-28 02:47:23,806 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:47:23,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-1.c [2019-11-28 02:47:23,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77c41d07/1ce726d71f984f9a89f4f22e9ded1d8f/FLAG8abfad958 [2019-11-28 02:47:24,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77c41d07/1ce726d71f984f9a89f4f22e9ded1d8f [2019-11-28 02:47:24,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:47:24,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:47:24,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:47:24,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:47:24,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:47:24,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e9591f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24, skipping insertion in model container [2019-11-28 02:47:24,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:47:24,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:47:24,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:47:24,486 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:47:24,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:47:24,522 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:47:24,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24 WrapperNode [2019-11-28 02:47:24,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:47:24,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:47:24,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:47:24,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:47:24,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (1/1) ... [2019-11-28 02:47:24,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:47:24,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:47:24,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:47:24,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:47:24,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (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 02:47:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:47:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:47:24,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:47:24,690 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:47:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:47:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:47:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:47:24,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:47:24,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:47:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:47:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:47:24,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:47:24,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:47:24,931 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:47:24,931 INFO L297 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 02:47:24,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:24 BoogieIcfgContainer [2019-11-28 02:47:24,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:47:24,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:47:24,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:47:24,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:47:24,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:47:24" (1/3) ... [2019-11-28 02:47:24,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63050b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:47:24, skipping insertion in model container [2019-11-28 02:47:24,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:47:24" (2/3) ... [2019-11-28 02:47:24,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63050b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:47:24, skipping insertion in model container [2019-11-28 02:47:24,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:24" (3/3) ... [2019-11-28 02:47:24,962 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-1.c [2019-11-28 02:47:24,980 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:47:24,987 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-28 02:47:25,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-28 02:47:25,023 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:47:25,023 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:47:25,023 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:47:25,024 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:47:25,024 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:47:25,024 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:47:25,024 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:47:25,024 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:47:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-28 02:47:25,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:47:25,050 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:25,051 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:25,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 02:47:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:25,060 INFO L82 PathProgramCache]: Analyzing trace with hash -522028180, now seen corresponding path program 1 times [2019-11-28 02:47:25,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:25,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144281074] [2019-11-28 02:47:25,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,262 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 02:47:25,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144281074] [2019-11-28 02:47:25,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:25,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:47:25,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367706934] [2019-11-28 02:47:25,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:47:25,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:25,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:47:25,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,285 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-11-28 02:47:25,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:25,428 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-11-28 02:47:25,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:47:25,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 02:47:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:25,439 INFO L225 Difference]: With dead ends: 28 [2019-11-28 02:47:25,439 INFO L226 Difference]: Without dead ends: 25 [2019-11-28 02:47:25,442 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-28 02:47:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-28 02:47:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 02:47:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-11-28 02:47:25,475 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2019-11-28 02:47:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:25,476 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2019-11-28 02:47:25,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:47:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2019-11-28 02:47:25,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:47:25,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:25,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:25,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 02:47:25,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:25,478 INFO L82 PathProgramCache]: Analyzing trace with hash -522028179, now seen corresponding path program 1 times [2019-11-28 02:47:25,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:25,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439428429] [2019-11-28 02:47:25,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,567 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 02:47:25,568 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439428429] [2019-11-28 02:47:25,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:25,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:47:25,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40069558] [2019-11-28 02:47:25,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:47:25,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:25,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:47:25,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,574 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 4 states. [2019-11-28 02:47:25,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:25,669 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-28 02:47:25,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:47:25,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 02:47:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:25,670 INFO L225 Difference]: With dead ends: 20 [2019-11-28 02:47:25,671 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 02:47:25,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 02:47:25,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 02:47:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 02:47:25,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-28 02:47:25,676 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2019-11-28 02:47:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:25,677 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-28 02:47:25,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:47:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-28 02:47:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:47:25,678 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:25,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:25,678 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 02:47:25,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:25,679 INFO L82 PathProgramCache]: Analyzing trace with hash -141661244, now seen corresponding path program 1 times [2019-11-28 02:47:25,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:25,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123170998] [2019-11-28 02:47:25,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,744 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 02:47:25,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123170998] [2019-11-28 02:47:25,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:25,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:47:25,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081816510] [2019-11-28 02:47:25,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 02:47:25,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:25,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 02:47:25,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,747 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 4 states. [2019-11-28 02:47:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:25,792 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-28 02:47:25,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 02:47:25,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-28 02:47:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:25,795 INFO L225 Difference]: With dead ends: 19 [2019-11-28 02:47:25,795 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 02:47:25,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 02:47:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 02:47:25,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 02:47:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 02:47:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-28 02:47:25,800 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2019-11-28 02:47:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:25,800 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-28 02:47:25,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 02:47:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-28 02:47:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 02:47:25,801 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:47:25,801 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:47:25,802 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr11ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION]=== [2019-11-28 02:47:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:47:25,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1302500167, now seen corresponding path program 1 times [2019-11-28 02:47:25,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:47:25,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98867656] [2019-11-28 02:47:25,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:47:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:47:25,943 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 02:47:25,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98867656] [2019-11-28 02:47:25,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:47:25,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:47:25,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139592324] [2019-11-28 02:47:25,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:47:25,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:47:25,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:47:25,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:47:25,947 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2019-11-28 02:47:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:47:25,988 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-28 02:47:25,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:47:25,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-11-28 02:47:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:47:25,990 INFO L225 Difference]: With dead ends: 18 [2019-11-28 02:47:25,990 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:47:25,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:47:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:47:25,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:47:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:47:25,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:47:25,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-28 02:47:25,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:47:25,992 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:47:25,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:47:25,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:47:25,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:47:25,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:47:25 BoogieIcfgContainer [2019-11-28 02:47:25,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:47:26,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:47:26,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:47:26,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:47:26,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:47:24" (3/4) ... [2019-11-28 02:47:26,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:47:26,012 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 02:47:26,012 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 02:47:26,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-28 02:47:26,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:47:26,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:47:26,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 02:47:26,068 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:47:26,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:47:26,071 INFO L168 Benchmark]: Toolchain (without parser) took 1862.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -79.3 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,072 INFO L168 Benchmark]: CDTParser took 0.20 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 02:47:26,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.07 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,073 INFO L168 Benchmark]: Boogie Preprocessor took 91.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,074 INFO L168 Benchmark]: RCFGBuilder took 318.00 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,075 INFO L168 Benchmark]: TraceAbstraction took 1064.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,075 INFO L168 Benchmark]: Witness Printer took 68.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:47:26,079 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 315.07 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.00 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1064.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 12 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 30 SDs, 0 SdLazy, 109 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1529 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 correct! Received shutdown request...