./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.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 3f34751565a9d43a481fab038d13037e70cdccbf ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:19:51,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:19:51,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:19:51,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:19:51,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:19:51,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:19:51,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:19:51,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:19:51,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:19:51,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:19:51,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:19:51,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:19:51,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:19:51,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:19:51,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:19:51,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:19:51,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:19:51,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:19:51,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:19:51,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:19:51,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:19:51,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:19:51,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:19:51,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:19:51,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:19:51,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:19:51,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:19:51,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:19:51,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:19:51,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:19:51,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:19:51,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:19:51,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:19:51,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:19:51,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:19:51,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:19:51,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:19:51,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:19:51,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:19:51,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:19:51,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:19:51,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-28 20:19:51,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:19:51,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:19:51,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:19:51,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:19:51,843 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:19:51,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:19:51,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:19:51,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:19:51,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:19:51,845 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 20:19:51,845 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 20:19:51,845 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 20:19:51,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:19:51,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 20:19:51,846 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:19:51,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:19:51,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:19:51,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:19:51,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:19:51,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:51,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:19:51,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:19:51,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:19:51,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:19:51,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:19:51,849 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 -> 3f34751565a9d43a481fab038d13037e70cdccbf [2019-11-28 20:19:52,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:19:52,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:19:52,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:19:52,198 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:19:52,199 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:19:52,200 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-11-28 20:19:52,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266c80d9/655feed1ef044a4998dd2fabef30e4c2/FLAG25bc8cf99 [2019-11-28 20:19:52,731 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:19:52,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-11-28 20:19:52,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266c80d9/655feed1ef044a4998dd2fabef30e4c2/FLAG25bc8cf99 [2019-11-28 20:19:53,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6266c80d9/655feed1ef044a4998dd2fabef30e4c2 [2019-11-28 20:19:53,109 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:19:53,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 20:19:53,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:53,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:19:53,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:19:53,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac73889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53, skipping insertion in model container [2019-11-28 20:19:53,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:19:53,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:19:53,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:53,335 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:19:53,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:19:53,364 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:19:53,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53 WrapperNode [2019-11-28 20:19:53,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:19:53,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:19:53,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:19:53,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:19:53,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... [2019-11-28 20:19:53,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:19:53,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:19:53,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:19:53,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:19:53,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:19:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 20:19:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:19:53,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 20:19:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 20:19:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 20:19:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 20:19:53,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 20:19:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:19:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:19:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:19:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:19:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 20:19:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:19:53,760 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:19:53,761 INFO L287 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-28 20:19:53,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:53 BoogieIcfgContainer [2019-11-28 20:19:53,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:19:53,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:19:53,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:19:53,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:19:53,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:19:53" (1/3) ... [2019-11-28 20:19:53,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8da9f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:53, skipping insertion in model container [2019-11-28 20:19:53,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:19:53" (2/3) ... [2019-11-28 20:19:53,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8da9f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:19:53, skipping insertion in model container [2019-11-28 20:19:53,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:53" (3/3) ... [2019-11-28 20:19:53,786 INFO L109 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c [2019-11-28 20:19:53,809 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:19:53,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-28 20:19:53,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-28 20:19:53,848 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:19:53,848 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 20:19:53,849 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:19:53,849 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:19:53,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:19:53,849 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:19:53,849 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:19:53,849 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:19:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-11-28 20:19:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:19:53,877 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:53,878 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:53,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 20:19:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:53,884 INFO L82 PathProgramCache]: Analyzing trace with hash 222801388, now seen corresponding path program 1 times [2019-11-28 20:19:53,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:53,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718574133] [2019-11-28 20:19:53,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:54,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718574133] [2019-11-28 20:19:54,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:54,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:54,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634460748] [2019-11-28 20:19:54,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:54,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:54,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:54,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:54,111 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2019-11-28 20:19:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:54,239 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-11-28 20:19:54,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:54,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:19:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:54,250 INFO L225 Difference]: With dead ends: 25 [2019-11-28 20:19:54,250 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 20:19:54,252 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 20:19:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 20:19:54,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 20:19:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 20:19:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-11-28 20:19:54,285 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 7 [2019-11-28 20:19:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:54,285 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-11-28 20:19:54,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-11-28 20:19:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 20:19:54,286 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:54,286 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:54,287 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 20:19:54,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash 222801389, now seen corresponding path program 1 times [2019-11-28 20:19:54,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:54,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472413538] [2019-11-28 20:19:54,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:54,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472413538] [2019-11-28 20:19:54,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:54,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:54,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472710142] [2019-11-28 20:19:54,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:54,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:54,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:54,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:54,373 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 4 states. [2019-11-28 20:19:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:54,421 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-28 20:19:54,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:54,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-28 20:19:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:54,423 INFO L225 Difference]: With dead ends: 18 [2019-11-28 20:19:54,423 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 20:19:54,424 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 20:19:54,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 20:19:54,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 20:19:54,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 20:19:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-28 20:19:54,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 7 [2019-11-28 20:19:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:54,429 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-28 20:19:54,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-28 20:19:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 20:19:54,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:54,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:54,431 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 20:19:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:54,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1751663173, now seen corresponding path program 1 times [2019-11-28 20:19:54,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:54,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444676444] [2019-11-28 20:19:54,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:54,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444676444] [2019-11-28 20:19:54,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:54,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:19:54,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369310393] [2019-11-28 20:19:54,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 20:19:54,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:54,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:19:54,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:19:54,503 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2019-11-28 20:19:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:54,546 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-11-28 20:19:54,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:19:54,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 20:19:54,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:54,548 INFO L225 Difference]: With dead ends: 17 [2019-11-28 20:19:54,548 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 20:19:54,548 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 20:19:54,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 20:19:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 20:19:54,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 20:19:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-11-28 20:19:54,552 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2019-11-28 20:19:54,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:54,553 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-11-28 20:19:54,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 20:19:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-11-28 20:19:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 20:19:54,554 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:19:54,554 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:19:54,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr9ENSURES_VIOLATIONMEMORY_LEAK, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr7ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-28 20:19:54,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:19:54,555 INFO L82 PathProgramCache]: Analyzing trace with hash -278868728, now seen corresponding path program 1 times [2019-11-28 20:19:54,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:19:54,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753235187] [2019-11-28 20:19:54,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:19:54,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:19:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:19:54,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753235187] [2019-11-28 20:19:54,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:19:54,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:19:54,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063260647] [2019-11-28 20:19:54,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 20:19:54,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:19:54,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 20:19:54,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 20:19:54,684 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2019-11-28 20:19:54,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:19:54,757 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-11-28 20:19:54,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 20:19:54,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 20:19:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:19:54,758 INFO L225 Difference]: With dead ends: 16 [2019-11-28 20:19:54,759 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 20:19:54,759 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 20:19:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 20:19:54,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 20:19:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 20:19:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 20:19:54,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-11-28 20:19:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:19:54,761 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:19:54,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 20:19:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:19:54,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 20:19:54,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:19:54 BoogieIcfgContainer [2019-11-28 20:19:54,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:19:54,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:19:54,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:19:54,769 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:19:54,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:19:53" (3/4) ... [2019-11-28 20:19:54,774 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 20:19:54,782 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-28 20:19:54,783 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-28 20:19:54,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-28 20:19:54,789 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 20:19:54,789 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:54,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 20:19:54,882 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:19:54,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:19:54,885 INFO L168 Benchmark]: Toolchain (without parser) took 1773.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -57.2 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:54,886 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:54,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:54,888 INFO L168 Benchmark]: Boogie Preprocessor took 87.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:54,894 INFO L168 Benchmark]: RCFGBuilder took 309.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:54,895 INFO L168 Benchmark]: TraceAbstraction took 1004.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:19:54,895 INFO L168 Benchmark]: Witness Printer took 113.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:19:54,906 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 252.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 309.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1004.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.6 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. * Witness Printer took 113.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference 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: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference 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: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 10 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 39 SDslu, 31 SDs, 0 SdLazy, 107 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=29occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1097 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...