./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i --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_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/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 1643f1caf494dad598b4df826effeedd3e612fb8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:21:16,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:21:16,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:21:16,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:21:16,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:21:16,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:21:16,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:21:16,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:21:16,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:21:16,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:21:16,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:21:16,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:21:16,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:21:16,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:21:16,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:21:16,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:21:16,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:21:16,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:21:16,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:21:16,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:21:16,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:21:16,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:21:16,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:21:16,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:21:16,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:21:16,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:21:16,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:21:16,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:21:16,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:21:16,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:21:16,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:21:16,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:21:16,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:21:16,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:21:16,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:21:16,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:21:16,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:21:16,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:21:16,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:21:16,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:21:16,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:21:16,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 18:21:17,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:21:17,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:21:17,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:21:17,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:21:17,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:21:17,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:21:17,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:21:17,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:21:17,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:21:17,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:21:17,030 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:21:17,030 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:21:17,030 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 18:21:17,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:21:17,031 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:21:17,031 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:21:17,031 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:21:17,032 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:21:17,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:21:17,032 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:21:17,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:21:17,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:21:17,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:21:17,034 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:21:17,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:21:17,034 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_cf69de11-a0fd-4756-adcb-fc5840499169/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1643f1caf494dad598b4df826effeedd3e612fb8 [2020-12-01 18:21:17,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:21:17,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:21:17,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:21:17,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:21:17,419 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:21:17,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-12-01 18:21:17,506 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/data/e057883f3/1da0f91dcfe44d00b820f45535cb9e24/FLAG0f148a7ad [2020-12-01 18:21:18,219 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:21:18,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-12-01 18:21:18,250 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/data/e057883f3/1da0f91dcfe44d00b820f45535cb9e24/FLAG0f148a7ad [2020-12-01 18:21:18,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/data/e057883f3/1da0f91dcfe44d00b820f45535cb9e24 [2020-12-01 18:21:18,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:21:18,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:21:18,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:21:18,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:21:18,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:21:18,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:21:18" (1/1) ... [2020-12-01 18:21:18,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24f087fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:18, skipping insertion in model container [2020-12-01 18:21:18,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:21:18" (1/1) ... [2020-12-01 18:21:18,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:21:18,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:21:19,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:21:19,092 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:21:19,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:21:19,247 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:21:19,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19 WrapperNode [2020-12-01 18:21:19,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:21:19,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:21:19,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:21:19,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:21:19,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:21:19,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:21:19,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:21:19,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:21:19,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... [2020-12-01 18:21:19,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:21:19,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:21:19,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:21:19,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:21:19,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:21:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/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 18:21:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:21:19,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:21:19,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:21:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:21:19,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:21:19,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:21:20,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:21:20,211 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 18:21:20,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:20 BoogieIcfgContainer [2020-12-01 18:21:20,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:21:20,218 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:21:20,219 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:21:20,232 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:21:20,234 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:20" (1/1) ... [2020-12-01 18:21:20,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:21:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 18:21:20,306 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 18:21:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:21:20,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:20,540 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 18:21:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-12-01 18:21:20,619 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-12-01 18:21:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:21:20,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:20,779 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 18:21:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-12-01 18:21:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-12-01 18:21:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:21:21,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:21,230 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 18:21:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-12-01 18:21:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-12-01 18:21:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:21:21,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:21,484 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 18:21:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2020-12-01 18:21:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2020-12-01 18:21:21,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:21:21,731 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:21,825 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 18:21:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-12-01 18:21:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-12-01 18:21:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:21:22,098 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:22,231 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 18:21:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:23,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2020-12-01 18:21:23,180 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2020-12-01 18:21:23,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:21:23,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:21:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 21 states and 38 transitions. [2020-12-01 18:21:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 38 transitions. [2020-12-01 18:21:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:21:24,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:24,646 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 18:21:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 21 states and 37 transitions. [2020-12-01 18:21:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 37 transitions. [2020-12-01 18:21:25,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:21:25,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:25,308 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 18:21:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 39 transitions. [2020-12-01 18:21:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 39 transitions. [2020-12-01 18:21:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:21:25,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2020-12-01 18:21:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-12-01 18:21:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:21:26,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:21:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-12-01 18:21:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-12-01 18:21:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:21:26,650 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:28,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2020-12-01 18:21:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2020-12-01 18:21:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:21:28,804 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:21:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 26 states and 48 transitions. [2020-12-01 18:21:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 48 transitions. [2020-12-01 18:21:31,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:21:31,495 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:21:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 27 states and 49 transitions. [2020-12-01 18:21:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 49 transitions. [2020-12-01 18:21:32,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:21:32,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:21:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2020-12-01 18:21:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2020-12-01 18:21:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:21:32,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 48 transitions. [2020-12-01 18:21:33,565 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 48 transitions. [2020-12-01 18:21:33,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:21:33,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:34,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 30 states and 56 transitions. [2020-12-01 18:21:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 56 transitions. [2020-12-01 18:21:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:21:35,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 34 states and 64 transitions. [2020-12-01 18:21:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2020-12-01 18:21:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:21:38,685 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 18:21:41,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:41,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 69 transitions. [2020-12-01 18:21:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2020-12-01 18:21:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:21:41,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:41,815 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:21:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2020-12-01 18:21:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2020-12-01 18:21:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:21:42,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:43,909 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 18:21:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2020-12-01 18:21:45,690 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-12-01 18:21:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:21:45,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:21:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:21:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-01 18:21:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:21:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-12-01 18:21:48,601 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-01 18:21:48,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:21:48,602 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2020-12-01 18:21:48,609 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2020-12-01 18:21:48,735 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-01 18:21:49,017 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-01 18:21:49,024 INFO L569 CodeCheckObserver]: Invariant with dag size 27 [2020-12-01 18:21:49,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,041 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:21:49,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,042 INFO L569 CodeCheckObserver]: Invariant with dag size 35 [2020-12-01 18:21:49,044 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,045 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,046 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,046 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,046 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:21:49 ImpRootNode [2020-12-01 18:21:49,054 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:21:49,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:21:49,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:21:49,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:21:49,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:21:20" (3/4) ... [2020-12-01 18:21:49,059 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:21:49,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-01 18:21:49,072 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 18:21:49,072 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:21:49,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || ((((((1 < i && \valid[numbers] == 1) && 2 <= array_size) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0)) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) [2020-12-01 18:21:49,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) [2020-12-01 18:21:49,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 18:21:49,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cf69de11-a0fd-4756-adcb-fc5840499169/bin/ukojak/witness.graphml [2020-12-01 18:21:49,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:21:49,171 INFO L168 Benchmark]: Toolchain (without parser) took 30699.22 ms. Allocated memory was 107.0 MB in the beginning and 314.6 MB in the end (delta: 207.6 MB). Free memory was 80.4 MB in the beginning and 221.6 MB in the end (delta: -141.3 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,172 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 107.0 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:21:49,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.68 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 73.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 107.0 MB. Free memory was 73.0 MB in the beginning and 71.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,178 INFO L168 Benchmark]: Boogie Preprocessor took 31.14 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 70.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:21:49,179 INFO L168 Benchmark]: RCFGBuilder took 881.77 ms. Allocated memory was 107.0 MB in the beginning and 148.9 MB in the end (delta: 41.9 MB). Free memory was 70.0 MB in the beginning and 122.4 MB in the end (delta: -52.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,181 INFO L168 Benchmark]: CodeCheck took 28835.38 ms. Allocated memory was 148.9 MB in the beginning and 314.6 MB in the end (delta: 165.7 MB). Free memory was 122.4 MB in the beginning and 223.7 MB in the end (delta: -101.4 MB). Peak memory consumption was 65.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,181 INFO L168 Benchmark]: Witness Printer took 114.64 ms. Allocated memory is still 314.6 MB. Free memory was 223.7 MB in the beginning and 221.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:21:49,184 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, 12 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.3s, OverallIterations: 23, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4718592 SDtfs, 7037472 SDslu, 4194304 SDs, 0 SdLazy, 68451440 SolverSat, 25746484 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1797 GetRequests, 1493 SyntacticMatches, 66 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23440 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 10301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 57/98 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: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 520]: 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: 517]: Loop Invariant [2020-12-01 18:21:49,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) - InvariantResult [Line: 524]: Loop Invariant [2020-12-01 18:21:49,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 531]: Loop Invariant [2020-12-01 18:21:49,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,209 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,210 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:21:49,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:21:49,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || ((((((1 < i && \valid[numbers] == 1) && 2 <= array_size) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0)) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 107.0 MB. Free memory was 66.1 MB in the beginning and 66.1 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.68 ms. Allocated memory is still 107.0 MB. Free memory was 80.0 MB in the beginning and 73.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.34 ms. Allocated memory is still 107.0 MB. Free memory was 73.0 MB in the beginning and 71.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.14 ms. Allocated memory is still 107.0 MB. Free memory was 71.3 MB in the beginning and 70.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 881.77 ms. Allocated memory was 107.0 MB in the beginning and 148.9 MB in the end (delta: 41.9 MB). Free memory was 70.0 MB in the beginning and 122.4 MB in the end (delta: -52.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 28835.38 ms. Allocated memory was 148.9 MB in the beginning and 314.6 MB in the end (delta: 165.7 MB). Free memory was 122.4 MB in the beginning and 223.7 MB in the end (delta: -101.4 MB). Peak memory consumption was 65.9 MB. Max. memory is 16.1 GB. * Witness Printer took 114.64 ms. Allocated memory is still 314.6 MB. Free memory was 223.7 MB in the beginning and 221.6 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 #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 #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 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 #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 #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 #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 #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 #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 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 #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 #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 #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...