./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/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak --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 Kojak --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 [2019-12-02 01:44:12,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 01:44:12,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 01:44:12,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 01:44:12,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 01:44:12,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 01:44:12,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 01:44:12,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 01:44:12,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 01:44:12,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 01:44:12,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 01:44:12,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 01:44:12,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 01:44:12,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 01:44:12,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 01:44:12,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 01:44:12,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 01:44:12,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 01:44:12,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 01:44:12,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 01:44:12,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 01:44:12,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 01:44:12,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 01:44:12,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 01:44:12,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 01:44:12,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 01:44:12,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 01:44:12,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 01:44:12,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 01:44:12,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 01:44:12,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 01:44:12,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 01:44:12,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 01:44:12,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 01:44:12,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 01:44:12,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 01:44:12,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 01:44:12,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 01:44:12,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 01:44:12,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 01:44:12,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 01:44:12,898 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2019-12-02 01:44:12,908 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 01:44:12,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 01:44:12,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 01:44:12,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 01:44:12,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 01:44:12,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-02 01:44:12,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 01:44:12,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 01:44:12,909 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 01:44:12,910 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 01:44:12,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 01:44:12,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 01:44:12,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 01:44:12,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 01:44:12,911 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 01:44:12,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 01:44:12,911 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak 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 -> Kojak 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 [2019-12-02 01:44:13,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 01:44:13,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 01:44:13,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 01:44:13,028 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 01:44:13,028 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 01:44:13,029 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-12-02 01:44:13,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/data/ac55d3c08/edf64181fff9439380b197aedcc650ea/FLAG88b492a5c [2019-12-02 01:44:13,522 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 01:44:13,522 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2019-12-02 01:44:13,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/data/ac55d3c08/edf64181fff9439380b197aedcc650ea/FLAG88b492a5c [2019-12-02 01:44:13,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/data/ac55d3c08/edf64181fff9439380b197aedcc650ea [2019-12-02 01:44:13,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 01:44:13,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 01:44:13,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 01:44:13,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 01:44:13,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 01:44:13,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b99664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13, skipping insertion in model container [2019-12-02 01:44:13,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 01:44:13,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 01:44:13,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:44:13,691 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 01:44:13,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 01:44:13,711 INFO L208 MainTranslator]: Completed translation [2019-12-02 01:44:13,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13 WrapperNode [2019-12-02 01:44:13,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 01:44:13,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 01:44:13,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 01:44:13,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 01:44:13,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 01:44:13,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 01:44:13,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 01:44:13,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 01:44:13,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 01:44:13,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 01:44:13,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 01:44:13,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 01:44:13,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:44:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-12-02 01:44:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-02 01:44:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-02 01:44:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 01:44:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 01:44:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-02 01:44:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-02 01:44:13,943 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 01:44:13,943 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-02 01:44:13,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:13 BoogieIcfgContainer [2019-12-02 01:44:13,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 01:44:13,944 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 01:44:13,944 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 01:44:13,951 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 01:44:13,951 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:13" (1/1) ... [2019-12-02 01:44:13,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 01:44:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:13,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2019-12-02 01:44:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-02 01:44:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-02 01:44:13,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-02 01:44:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-02 01:44:14,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-02 01:44:14,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2019-12-02 01:44:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-02 01:44:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-02 01:44:14,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2019-12-02 01:44:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-12-02 01:44:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-02 01:44:14,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2019-12-02 01:44:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-12-02 01:44:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-02 01:44:14,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2019-12-02 01:44:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-12-02 01:44:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 01:44:14,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2019-12-02 01:44:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-12-02 01:44:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 01:44:14,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2019-12-02 01:44:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2019-12-02 01:44:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 01:44:14,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-12-02 01:44:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-12-02 01:44:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 01:44:14,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2019-12-02 01:44:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-12-02 01:44:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 01:44:14,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2019-12-02 01:44:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-12-02 01:44:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 01:44:15,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:44:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2019-12-02 01:44:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-12-02 01:44:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 01:44:15,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-02 01:44:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-12-02 01:44:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-12-02 01:44:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:44:15,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-02 01:44:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2019-12-02 01:44:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2019-12-02 01:44:15,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:44:15,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-02 01:44:15,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2019-12-02 01:44:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-12-02 01:44:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-02 01:44:15,912 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-02 01:44:15,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2019-12-02 01:44:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-12-02 01:44:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-02 01:44:15,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:44:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:44:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-02 01:44:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:44:16,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2019-12-02 01:44:16,100 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-02 01:44:16,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-02 01:44:16,101 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2019-12-02 01:44:16,107 INFO L765 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2019-12-02 01:44:16,185 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2019-12-02 01:44:16,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-02 01:44:16,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-12-02 01:44:16,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-02 01:44:16,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-12-02 01:44:16,194 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,195 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-12-02 01:44:16,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:44:16 ImpRootNode [2019-12-02 01:44:16,196 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 01:44:16,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 01:44:16,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 01:44:16,196 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 01:44:16,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:44:13" (3/4) ... [2019-12-02 01:44:16,199 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-02 01:44:16,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-02 01:44:16,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-02 01:44:16,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-02 01:44:16,223 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((p + 4 <= unknown-#length-unknown[p] && p + 1 <= unknown-#StackHeapBarrier-unknown) && 1 == \valid[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[p := 0]) && p <= 0) && 0 < p + 1 [2019-12-02 01:44:16,223 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2019-12-02 01:44:16,232 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d1c80cae-19b1-4c7b-9e45-75d0f114213d/bin/ukojak/witness.graphml [2019-12-02 01:44:16,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 01:44:16,234 INFO L168 Benchmark]: Toolchain (without parser) took 2695.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.9 MB in the beginning and 897.7 MB in the end (delta: 43.2 MB). Peak memory consumption was 143.8 MB. Max. memory is 11.5 GB. [2019-12-02 01:44:16,234 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:44:16,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-02 01:44:16,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:44:16,235 INFO L168 Benchmark]: Boogie Preprocessor took 18.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:44:16,235 INFO L168 Benchmark]: RCFGBuilder took 189.95 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-02 01:44:16,236 INFO L168 Benchmark]: CodeCheck took 2251.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 899.5 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. [2019-12-02 01:44:16,236 INFO L168 Benchmark]: Witness Printer took 36.25 ms. Allocated memory is still 1.1 GB. Free memory was 899.5 MB in the beginning and 897.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-02 01:44:16,238 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 20 locations, 10 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 17, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81920 SDtfs, 115496 SDslu, 136632 SDs, 0 SdLazy, 586880 SolverSat, 267072 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 816 GetRequests, 705 SyntacticMatches, 25 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 11/11 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - 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: 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: 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: 16]: 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: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-12-02 01:44:16,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-02 01:44:16,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-12-02 01:44:16,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-02 01:44:16,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-12-02 01:44:16,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((((p + 4 <= unknown-#length-unknown[p] && p + 1 <= unknown-#StackHeapBarrier-unknown) && 1 == \valid[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[p := 0]) && p <= 0) && 0 < p + 1 - InvariantResult [Line: 13]: Loop Invariant [2019-12-02 01:44:16,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-02 01:44:16,241 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 189.95 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * CodeCheck took 2251.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 899.5 MB in the end (delta: 174.2 MB). Peak memory consumption was 174.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.25 ms. Allocated memory is still 1.1 GB. Free memory was 899.5 MB in the beginning and 897.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...