./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/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 89c40e0e226fdcfbda8631272bf2c238348d58a6 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:16:37,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:37,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:37,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:37,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:37,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:37,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:37,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:37,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:37,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:37,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:37,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:37,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:37,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:37,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:37,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:37,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:37,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:37,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:37,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:37,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:37,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:37,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:37,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:37,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:37,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:37,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:37,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:37,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:37,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:37,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:37,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:37,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:37,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:37,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:37,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:37,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:37,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:37,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:37,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:37,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:37,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-10-22 10:16:37,437 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:37,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:37,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:37,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:37,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:37,439 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:16:37,440 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:16:37,440 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 10:16:37,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:37,440 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:16:37,440 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:37,440 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:37,441 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:37,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:37,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:37,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:37,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:37,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:37,442 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:37,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:37,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/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 -> 89c40e0e226fdcfbda8631272bf2c238348d58a6 [2019-10-22 10:16:37,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:37,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:37,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:37,479 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:37,480 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:37,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset2.c [2019-10-22 10:16:37,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/data/92625574a/efe98669b50b454dab216e3923115db4/FLAGda8d0caf6 [2019-10-22 10:16:37,911 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:37,912 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/sv-benchmarks/c/ldv-memsafety/memset2.c [2019-10-22 10:16:37,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/data/92625574a/efe98669b50b454dab216e3923115db4/FLAGda8d0caf6 [2019-10-22 10:16:37,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/data/92625574a/efe98669b50b454dab216e3923115db4 [2019-10-22 10:16:37,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:37,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:37,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:37,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:37,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:37,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:37" (1/1) ... [2019-10-22 10:16:37,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e00c0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:37, skipping insertion in model container [2019-10-22 10:16:37,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:37" (1/1) ... [2019-10-22 10:16:37,948 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:37,962 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:38,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:38,119 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:38,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:38,215 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:38,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38 WrapperNode [2019-10-22 10:16:38,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:38,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:38,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:38,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:38,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:38,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:38,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:38,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:38,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:38,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:38,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:38,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:38,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:38,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:16:38,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:16:38,522 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:38,523 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 10:16:38,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:38 BoogieIcfgContainer [2019-10-22 10:16:38,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:38,524 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:38,524 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:38,547 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:38,547 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:38" (1/1) ... [2019-10-22 10:16:38,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:38,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-10-22 10:16:38,591 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-10-22 10:16:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-10-22 10:16:38,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-10-22 10:16:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-10-22 10:16:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:16:38,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:38,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-10-22 10:16:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-10-22 10:16:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:38,872 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2019-10-22 10:16:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-10-22 10:16:39,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:16:39,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2019-10-22 10:16:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-10-22 10:16:39,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:16:39,294 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2019-10-22 10:16:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-10-22 10:16:39,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:39,420 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-10-22 10:16:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-10-22 10:16:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:16:39,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2019-10-22 10:16:39,728 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-10-22 10:16:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:16:39,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2019-10-22 10:16:39,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 10:16:39,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:16:39,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-10-22 10:16:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 10:16:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:16:40,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:40,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2019-10-22 10:16:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-22 10:16:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:16:40,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-10-22 10:16:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-22 10:16:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:16:40,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2019-10-22 10:16:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-10-22 10:16:40,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:16:40,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2019-10-22 10:16:40,814 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-22 10:16:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:16:40,814 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:40,874 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:41,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2019-10-22 10:16:41,003 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-22 10:16:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:16:41,004 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:41,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2019-10-22 10:16:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-22 10:16:41,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:16:41,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:41,323 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2019-10-22 10:16:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-10-22 10:16:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:16:41,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:41,545 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2019-10-22 10:16:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-10-22 10:16:41,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:16:41,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2019-10-22 10:16:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-22 10:16:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:16:41,896 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2019-10-22 10:16:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-22 10:16:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 10:16:42,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:42,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2019-10-22 10:16:42,371 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2019-10-22 10:16:42,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:16:42,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:42,455 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:42,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2019-10-22 10:16:42,753 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-10-22 10:16:42,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 10:16:42,754 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2019-10-22 10:16:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-10-22 10:16:42,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 10:16:42,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2019-10-22 10:16:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2019-10-22 10:16:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 10:16:43,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:43,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2019-10-22 10:16:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-10-22 10:16:43,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:16:43,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:43,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2019-10-22 10:16:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-10-22 10:16:43,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 10:16:43,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2019-10-22 10:16:43,989 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-10-22 10:16:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 10:16:43,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2019-10-22 10:16:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2019-10-22 10:16:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 10:16:44,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:44,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2019-10-22 10:16:44,550 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2019-10-22 10:16:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 10:16:44,551 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:44,645 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:44,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:44,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2019-10-22 10:16:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2019-10-22 10:16:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 10:16:44,834 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:44,933 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2019-10-22 10:16:45,138 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-10-22 10:16:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 10:16:45,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2019-10-22 10:16:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-10-22 10:16:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 10:16:45,473 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:45,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2019-10-22 10:16:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2019-10-22 10:16:45,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-22 10:16:45,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2019-10-22 10:16:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-10-22 10:16:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-10-22 10:16:46,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2019-10-22 10:16:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-10-22 10:16:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:16:46,452 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2019-10-22 10:16:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2019-10-22 10:16:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-22 10:16:46,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:47,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:47,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2019-10-22 10:16:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2019-10-22 10:16:47,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-22 10:16:47,040 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:47,154 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2019-10-22 10:16:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2019-10-22 10:16:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-22 10:16:47,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2019-10-22 10:16:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2019-10-22 10:16:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 10:16:47,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:48,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2019-10-22 10:16:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2019-10-22 10:16:48,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-22 10:16:48,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2019-10-22 10:16:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2019-10-22 10:16:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-22 10:16:48,454 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:48,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2019-10-22 10:16:48,796 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2019-10-22 10:16:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-22 10:16:48,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:49,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:49,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 47 states and 48 transitions. [2019-10-22 10:16:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2019-10-22 10:16:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-22 10:16:49,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2019-10-22 10:17:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 46 states and 47 transitions. [2019-10-22 10:17:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2019-10-22 10:17:01,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:17:01,949 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 44 iterations. [2019-10-22 10:17:01,956 INFO L771 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2019-10-22 10:17:02,076 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 9 [2019-10-22 10:17:02,098 INFO L575 CodeCheckObserver]: Invariant with dag size 9 [2019-10-22 10:17:02,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,111 INFO L575 CodeCheckObserver]: Invariant with dag size 3 [2019-10-22 10:17:02,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:17:02 ImpRootNode [2019-10-22 10:17:02,114 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:17:02,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:17:02,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:17:02,115 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:17:02,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:38" (3/4) ... [2019-10-22 10:17:02,118 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:17:02,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-10-22 10:17:02,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:17:02,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 10:17:02,148 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 [2019-10-22 10:17:02,149 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2019-10-22 10:17:02,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8941a533-596c-45f8-aac6-a6456127f034/bin/ukojak/witness.graphml [2019-10-22 10:17:02,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:17:02,159 INFO L168 Benchmark]: Toolchain (without parser) took 24225.54 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 361.2 MB). Free memory was 951.2 MB in the beginning and 928.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 384.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:02,159 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:17:02,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:02,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:17:02,160 INFO L168 Benchmark]: Boogie Preprocessor took 15.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:17:02,161 INFO L168 Benchmark]: RCFGBuilder took 258.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:02,161 INFO L168 Benchmark]: CodeCheck took 23590.49 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 253.2 MB). Free memory was 1.1 GB in the beginning and 931.9 MB in the end (delta: 146.9 MB). Peak memory consumption was 400.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:02,162 INFO L168 Benchmark]: Witness Printer took 42.27 ms. Allocated memory is still 1.4 GB. Free memory was 931.9 MB in the beginning and 928.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:02,164 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 3 error locations. Result: SAFE, OverallTime: 23.3s, OverallIterations: 44, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 650 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10846 GetRequests, 9636 SyntacticMatches, 858 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51854 ImplicationChecksByTransitivity, 20.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 987 ConstructedInterpolants, 0 QuantifiedInterpolants, 158133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 4 PerfectInterpolantSequences, 820/11480 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2019-10-22 10:17:02,166 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 - InvariantResult [Line: 20]: Loop Invariant [2019-10-22 10:17:02,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-10-22 10:17:02,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.36 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 258.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * CodeCheck took 23590.49 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 253.2 MB). Free memory was 1.1 GB in the beginning and 931.9 MB in the end (delta: 146.9 MB). Peak memory consumption was 400.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.27 ms. Allocated memory is still 1.4 GB. Free memory was 931.9 MB in the beginning and 928.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 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 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 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 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 main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...