./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/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 0.1.23-635dfa2 [2018-12-09 10:10:32,586 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:10:32,587 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:10:32,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:10:32,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:10:32,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:10:32,596 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:10:32,597 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:10:32,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:10:32,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:10:32,599 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:10:32,599 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:10:32,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:10:32,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:10:32,601 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:10:32,602 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:10:32,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:10:32,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:10:32,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:10:32,606 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:10:32,606 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:10:32,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:10:32,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:10:32,608 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:10:32,608 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:10:32,608 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:10:32,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:10:32,609 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:10:32,610 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:10:32,610 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:10:32,611 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:10:32,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:10:32,611 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:10:32,611 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:10:32,612 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:10:32,613 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:10:32,613 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 10:10:32,620 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:10:32,620 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:10:32,621 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:10:32,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:10:32,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 10:10:32,622 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 10:10:32,623 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 10:10:32,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:10:32,623 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:10:32,623 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:10:32,623 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 10:10:32,623 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 10:10:32,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:10:32,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:10:32,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 10:10:32,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:10:32,624 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:10:32,624 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 10:10:32,625 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:10:32,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/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 [2018-12-09 10:10:32,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:10:32,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:10:32,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:10:32,656 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:10:32,656 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:10:32,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-12-09 10:10:32,690 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/data/810e3d027/384bc02be82143f086aeb078ea5128d6/FLAGfbb78be4c [2018-12-09 10:10:33,066 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:10:33,066 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-12-09 10:10:33,070 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/data/810e3d027/384bc02be82143f086aeb078ea5128d6/FLAGfbb78be4c [2018-12-09 10:10:33,078 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/data/810e3d027/384bc02be82143f086aeb078ea5128d6 [2018-12-09 10:10:33,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:10:33,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:10:33,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:10:33,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:10:33,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:10:33,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f49b694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33, skipping insertion in model container [2018-12-09 10:10:33,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:10:33,098 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:10:33,181 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:10:33,186 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:10:33,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:10:33,203 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:10:33,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33 WrapperNode [2018-12-09 10:10:33,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:10:33,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:10:33,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:10:33,204 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:10:33,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:10:33,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:10:33,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:10:33,230 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:10:33,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:10:33,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:10:33,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:10:33,269 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:10:33,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:10:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/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 [2018-12-09 10:10:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:10:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:10:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:10:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:10:33,401 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:10:33,401 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 10:10:33,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:10:33 BoogieIcfgContainer [2018-12-09 10:10:33,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:10:33,402 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 10:10:33,402 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 10:10:33,409 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 10:10:33,409 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:10:33" (1/1) ... [2018-12-09 10:10:33,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:10:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-09 10:10:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-09 10:10:33,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 10:10:33,439 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-09 10:10:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-09 10:10:33,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 10:10:33,539 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-09 10:10:33,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-09 10:10:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 10:10:33,682 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-12-09 10:10:33,884 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-09 10:10:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 10:10:33,884 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-12-09 10:10:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-09 10:10:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:10:33,957 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-12-09 10:10:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-12-09 10:10:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:10:34,042 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-09 10:10:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-09 10:10:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:10:34,128 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-09 10:10:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-09 10:10:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 10:10:34,219 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-09 10:10:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-09 10:10:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 10:10:34,325 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-09 10:10:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-09 10:10:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:10:34,421 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-09 10:10:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-09 10:10:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 10:10:34,529 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 10:10:34,651 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 10:10:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 10:10:34,651 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-09 10:10:34,759 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 10:10:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 10:10:34,759 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-09 10:10:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 10:10:34,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:10:34,880 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-12-09 10:10:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-09 10:10:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 10:10:34,982 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-12-09 10:10:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 10:10:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 10:10:35,109 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-12-09 10:10:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 10:10:35,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 10:10:35,227 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-12-09 10:10:35,331 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-09 10:10:35,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 10:10:35,332 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-12-09 10:10:35,482 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-12-09 10:10:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 10:10:35,483 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-09 10:10:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 10:10:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 10:10:35,613 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,653 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-12-09 10:10:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-09 10:10:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 10:10:35,741 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-09 10:10:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-09 10:10:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:10:35,887 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-12-09 10:10:36,045 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-09 10:10:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 10:10:36,045 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-12-09 10:10:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-12-09 10:10:36,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:10:36,184 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-12-09 10:10:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-09 10:10:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:10:36,316 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-12-09 10:10:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-12-09 10:10:36,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:10:36,460 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-12-09 10:10:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-12-09 10:10:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:10:36,611 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-12-09 10:10:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-09 10:10:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:10:36,773 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-12-09 10:10:36,934 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-09 10:10:36,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:10:36,934 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-12-09 10:10:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-09 10:10:37,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:10:37,098 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-12-09 10:10:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-12-09 10:10:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:10:37,250 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-12-09 10:10:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-09 10:10:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 10:10:37,433 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-12-09 10:10:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-12-09 10:10:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 10:10:37,609 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-12-09 10:10:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-12-09 10:10:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-09 10:10:37,776 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:37,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-12-09 10:10:37,946 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-09 10:10:37,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-09 10:10:37,946 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-12-09 10:10:38,115 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-12-09 10:10:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 10:10:38,115 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-12-09 10:10:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-09 10:10:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-09 10:10:38,296 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-12-09 10:10:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-12-09 10:10:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 10:10:38,480 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:38,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-12-09 10:10:38,682 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-12-09 10:10:38,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-09 10:10:38,683 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:38,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-12-09 10:10:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-09 10:10:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-09 10:10:38,889 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-12-09 10:10:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-12-09 10:10:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 10:10:39,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-12-09 10:10:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-12-09 10:10:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 10:10:39,307 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:39,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 47 states and 48 transitions. [2018-12-09 10:10:39,538 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-12-09 10:10:39,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 10:10:39,539 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:10:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2018-12-09 10:11:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:11:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 46 states and 47 transitions. [2018-12-09 10:11:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-12-09 10:11:00,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:11:00,557 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 44 iterations. [2018-12-09 10:11:00,564 INFO L779 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-12-09 10:11:00,686 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 11 [2018-12-09 10:11:00,712 INFO L583 CodeCheckObserver]: Invariant with dag size 11 [2018-12-09 10:11:00,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,725 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,725 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,725 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,726 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 10:11:00,726 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,727 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 10:11:00 ImpRootNode [2018-12-09 10:11:00,728 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 10:11:00,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:11:00,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:11:00,729 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:11:00,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:10:33" (3/4) ... [2018-12-09 10:11:00,733 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:11:00,741 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-09 10:11:00,742 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 10:11:00,742 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 10:11:00,761 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] [2018-12-09 10:11:00,762 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 10:11:00,767 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cb0d1846-d5bd-4c41-a0f5-97ab5f33083a/bin-2019/ukojak/witness.graphml [2018-12-09 10:11:00,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:11:00,768 INFO L168 Benchmark]: Toolchain (without parser) took 27688.34 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 299.9 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -84.0 MB). Peak memory consumption was 215.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:11:00,768 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:11:00,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.42 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:11:00,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.47 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:11:00,769 INFO L168 Benchmark]: Boogie Preprocessor took 39.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:11:00,769 INFO L168 Benchmark]: RCFGBuilder took 132.10 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:11:00,769 INFO L168 Benchmark]: CodeCheck took 27326.18 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 194.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:11:00,770 INFO L168 Benchmark]: Witness Printer took 39.20 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:11:00,771 INFO L336 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, 3 error locations. SAFE Result, 27.1s OverallTime, 44 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 650 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10846 GetRequests, 9636 SyntacticMatches, 858 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51854 ImplicationChecksByTransitivity, 25.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 987 ConstructedInterpolants, 0 QuantifiedInterpolants, 173269 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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: -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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2018-12-09 10:11:00,772 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,772 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,772 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,773 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,773 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,773 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] - InvariantResult [Line: 20]: Loop Invariant [2018-12-09 10:11:00,773 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:11:00,773 WARN L1298 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.42 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.47 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 132.10 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * CodeCheck took 27326.18 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 194.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.8 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.20 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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...