./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/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 32bit --witnessprinter.graph.data.programhash c8f17cf5334c3a5b079beafc57a2e2bffaea721f ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:36:51,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:36:51,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:36:52,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:36:52,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:36:52,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:36:52,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:36:52,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:36:52,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:36:52,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:36:52,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:36:52,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:36:52,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:36:52,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:36:52,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:36:52,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:36:52,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:36:52,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:36:52,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:36:52,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:36:52,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:36:52,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:36:52,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:36:52,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:36:52,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:36:52,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:36:52,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:36:52,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:36:52,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:36:52,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:36:52,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:36:52,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:36:52,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:36:52,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:36:52,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:36:52,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:36:52,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:36:52,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:36:52,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:36:52,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:36:52,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:36:52,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:36:52,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:36:52,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:36:52,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:36:52,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:36:52,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:36:52,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:36:52,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:36:52,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:36:52,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:36:52,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:36:52,142 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:36:52,142 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:36:52,142 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:36:52,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:36:52,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:36:52,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:36:52,143 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:36:52,143 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:36:52,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:36:52,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:36:52,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:36:52,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:36:52,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:36:52,145 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:36:52,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:36:52,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2020-12-01 16:36:52,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:36:52,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:36:52,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:36:52,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:36:52,582 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:36:52,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-12-01 16:36:52,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/data/c39ca3c24/41ad24e8fdd947dabb8994310253ba4b/FLAGcd873af5d [2020-12-01 16:36:53,179 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:36:53,180 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2020-12-01 16:36:53,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/data/c39ca3c24/41ad24e8fdd947dabb8994310253ba4b/FLAGcd873af5d [2020-12-01 16:36:53,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/data/c39ca3c24/41ad24e8fdd947dabb8994310253ba4b [2020-12-01 16:36:53,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:36:53,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:36:53,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:36:53,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:36:53,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:36:53,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205b9c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53, skipping insertion in model container [2020-12-01 16:36:53,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:36:53,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:36:53,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:36:53,797 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:36:53,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:36:53,833 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:36:53,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53 WrapperNode [2020-12-01 16:36:53,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:36:53,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:36:53,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:36:53,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:36:53,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:36:53,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:36:53,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:36:53,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:36:53,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... [2020-12-01 16:36:53,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:36:53,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:36:53,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:36:53,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:36:53,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:36:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/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 [2020-12-01 16:36:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:36:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:36:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:36:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:36:54,328 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:36:54,329 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:36:54,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:36:54 BoogieIcfgContainer [2020-12-01 16:36:54,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:36:54,333 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:36:54,333 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:36:54,354 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:36:54,354 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:36:54" (1/1) ... [2020-12-01 16:36:54,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:36:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 16:36:54,418 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 16:36:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:36:54,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:54,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 16:36:54,623 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 16:36:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:36:54,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-01 16:36:54,798 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-01 16:36:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:36:54,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:55,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-12-01 16:36:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-01 16:36:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:36:55,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:55,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-12-01 16:36:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-12-01 16:36:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:36:55,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2020-12-01 16:36:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-12-01 16:36:55,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:36:55,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:56,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-01 16:36:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-01 16:36:56,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:36:56,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:36:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-12-01 16:36:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-01 16:36:56,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:36:56,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:56,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2020-12-01 16:36:56,510 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-12-01 16:36:56,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:36:56,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-12-01 16:36:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-01 16:36:57,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:36:57,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:57,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:58,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2020-12-01 16:36:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-12-01 16:36:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:36:58,009 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:58,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-12-01 16:36:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-01 16:36:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:36:58,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:58,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2020-12-01 16:36:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-12-01 16:36:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:36:58,987 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:36:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:36:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2020-12-01 16:36:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2020-12-01 16:36:59,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:36:59,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:36:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:36:59,741 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2020-12-01 16:37:00,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2020-12-01 16:37:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:37:00,218 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2020-12-01 16:37:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2020-12-01 16:37:00,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:37:00,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2020-12-01 16:37:01,424 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-12-01 16:37:01,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:37:01,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 30 states and 38 transitions. [2020-12-01 16:37:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-01 16:37:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:37:02,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2020-12-01 16:37:02,973 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2020-12-01 16:37:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:37:02,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2020-12-01 16:37:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2020-12-01 16:37:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:37:03,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:04,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 35 states and 46 transitions. [2020-12-01 16:37:04,298 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2020-12-01 16:37:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:37:04,299 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2020-12-01 16:37:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2020-12-01 16:37:05,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:37:05,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2020-12-01 16:37:05,846 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2020-12-01 16:37:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:37:05,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:37:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 27 states and 26 transitions. [2020-12-01 16:37:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-12-01 16:37:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:37:06,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-01 16:37:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 26 states and 25 transitions. [2020-12-01 16:37:07,503 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-12-01 16:37:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 16:37:07,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:37:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:37:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-01 16:37:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:37:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 25 states and 24 transitions. [2020-12-01 16:37:11,445 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-12-01 16:37:11,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:37:11,445 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2020-12-01 16:37:11,451 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2020-12-01 16:37:11,629 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:37:11,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,637 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,638 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 16:37:11,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,639 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 16:37:11,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,640 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 16:37:11,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:37:11 ImpRootNode [2020-12-01 16:37:11,642 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:37:11,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:37:11,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:37:11,643 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:37:11,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:36:54" (3/4) ... [2020-12-01 16:37:11,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:37:11,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 16:37:11,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 16:37:11,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:37:11,696 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(unknown-main_\old_#valid-unknown) == \valid && \valid[array] == 1) && 0 <= i) && 40 == unknown-#length-unknown[array]) && array == 0 [2020-12-01 16:37:11,697 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:37:11,723 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a02d05b-8e56-466c-b3fb-7434a30cead7/bin/ukojak/witness.graphml [2020-12-01 16:37:11,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:37:11,726 INFO L168 Benchmark]: Toolchain (without parser) took 18184.35 ms. Allocated memory was 92.3 MB in the beginning and 299.9 MB in the end (delta: 207.6 MB). Free memory was 62.1 MB in the beginning and 141.5 MB in the end (delta: -79.4 MB). Peak memory consumption was 129.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,726 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 49.8 MB in the beginning and 49.7 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:37:11,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.51 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 62.0 MB in the beginning and 95.3 MB in the end (delta: -33.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 117.4 MB. Free memory was 95.3 MB in the beginning and 93.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,728 INFO L168 Benchmark]: Boogie Preprocessor took 34.49 ms. Allocated memory is still 117.4 MB. Free memory was 93.8 MB in the beginning and 92.8 MB in the end (delta: 984.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:37:11,729 INFO L168 Benchmark]: RCFGBuilder took 424.67 ms. Allocated memory is still 117.4 MB. Free memory was 92.8 MB in the beginning and 78.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,729 INFO L168 Benchmark]: CodeCheck took 17308.88 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 77.6 MB in the beginning and 143.6 MB in the end (delta: -66.0 MB). Peak memory consumption was 119.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,730 INFO L168 Benchmark]: Witness Printer took 81.67 ms. Allocated memory is still 299.9 MB. Free memory was 143.6 MB in the beginning and 141.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:37:11,733 INFO L339 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, 11 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.0s, OverallIterations: 26, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50331648 SDtfs, 85721136 SDslu, 0 SDs, 0 SdLazy, 477888622 SolverSat, 156849554 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2310 GetRequests, 1869 SyntacticMatches, 209 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25397 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 29395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 15 PerfectInterpolantSequences, 534/821 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: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2020-12-01 16:37:11,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 5]: Loop Invariant [2020-12-01 16:37:11,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 16:37:11,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:37:11,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((\old(unknown-main_\old_#valid-unknown) == \valid && \valid[array] == 1) && 0 <= i) && 40 == unknown-#length-unknown[array]) && array == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 92.3 MB. Free memory was 49.8 MB in the beginning and 49.7 MB in the end (delta: 34.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.51 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 62.0 MB in the beginning and 95.3 MB in the end (delta: -33.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.61 ms. Allocated memory is still 117.4 MB. Free memory was 95.3 MB in the beginning and 93.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.49 ms. Allocated memory is still 117.4 MB. Free memory was 93.8 MB in the beginning and 92.8 MB in the end (delta: 984.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 424.67 ms. Allocated memory is still 117.4 MB. Free memory was 92.8 MB in the beginning and 78.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 17308.88 ms. Allocated memory was 117.4 MB in the beginning and 299.9 MB in the end (delta: 182.5 MB). Free memory was 77.6 MB in the beginning and 143.6 MB in the end (delta: -66.0 MB). Peak memory consumption was 119.5 MB. Max. memory is 16.1 GB. * Witness Printer took 81.67 ms. Allocated memory is still 299.9 MB. Free memory was 143.6 MB in the beginning and 141.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...