./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/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 44834c55142a76240cb3980fc2bb6f5aeaa27c83 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:14:21,161 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:14:21,162 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:14:21,171 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:14:21,171 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:14:21,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:14:21,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:14:21,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:14:21,175 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:14:21,176 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:14:21,176 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:14:21,176 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:14:21,177 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:14:21,178 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:14:21,179 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:14:21,179 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:14:21,180 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:14:21,181 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:14:21,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:14:21,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:14:21,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:14:21,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:14:21,187 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:14:21,187 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:14:21,187 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:14:21,188 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:14:21,189 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:14:21,189 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:14:21,190 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:14:21,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:14:21,191 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:14:21,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:14:21,191 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:14:21,192 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:14:21,192 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:14:21,193 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:14:21,193 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 11:14:21,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:14:21,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:14:21,205 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:14:21,205 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:14:21,205 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:14:21,205 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:14:21,205 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:14:21,205 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:14:21,206 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:14:21,207 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:14:21,207 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 11:14:21,207 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 11:14:21,207 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:14:21,207 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:14:21,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 11:14:21,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:14:21,208 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:14:21,208 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 11:14:21,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:14:21,208 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_206edb8e-debe-4a3f-8310-74ca882f5e67/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 -> 44834c55142a76240cb3980fc2bb6f5aeaa27c83 [2018-11-18 11:14:21,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:14:21,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:14:21,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:14:21,241 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:14:21,241 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:14:21,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c [2018-11-18 11:14:21,284 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/data/f505ee0a8/6f8f52c02634402084296819b1b281b6/FLAG675579a55 [2018-11-18 11:14:21,587 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:14:21,587 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c [2018-11-18 11:14:21,591 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/data/f505ee0a8/6f8f52c02634402084296819b1b281b6/FLAG675579a55 [2018-11-18 11:14:21,603 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/data/f505ee0a8/6f8f52c02634402084296819b1b281b6 [2018-11-18 11:14:21,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:14:21,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:14:21,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:14:21,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:14:21,611 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:14:21,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6180e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21, skipping insertion in model container [2018-11-18 11:14:21,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:14:21,638 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:14:21,759 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:14:21,765 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:14:21,775 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:14:21,784 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:14:21,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21 WrapperNode [2018-11-18 11:14:21,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:14:21,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:14:21,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:14:21,785 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:14:21,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:14:21,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:14:21,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:14:21,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:14:21,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... [2018-11-18 11:14:21,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:14:21,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:14:21,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:14:21,853 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:14:21,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/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 [2018-11-18 11:14:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:14:21,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:14:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:14:21,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:14:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:14:22,000 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:14:22,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:22 BoogieIcfgContainer [2018-11-18 11:14:22,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:14:22,001 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 11:14:22,001 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 11:14:22,007 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 11:14:22,007 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:22" (1/1) ... [2018-11-18 11:14:22,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-11-18 11:14:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 11:14:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 11:14:22,036 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-11-18 11:14:22,159 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-18 11:14:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 11:14:22,159 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-11-18 11:14:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-11-18 11:14:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 11:14:22,350 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2018-11-18 11:14:22,484 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-18 11:14:22,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 11:14:22,487 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2018-11-18 11:14:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2018-11-18 11:14:22,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 11:14:22,517 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2018-11-18 11:14:22,806 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2018-11-18 11:14:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 11:14:22,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2018-11-18 11:14:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2018-11-18 11:14:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:14:22,885 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 35 states and 47 transitions. [2018-11-18 11:14:23,023 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2018-11-18 11:14:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:14:23,023 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2018-11-18 11:14:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2018-11-18 11:14:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:14:23,108 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 11:14:23,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 55 transitions. [2018-11-18 11:14:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2018-11-18 11:14:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:14:23,237 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 11:14:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:23,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2018-11-18 11:14:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2018-11-18 11:14:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:14:23,325 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 43 states and 64 transitions. [2018-11-18 11:14:23,888 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2018-11-18 11:14:23,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:14:23,889 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:24,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 44 states and 65 transitions. [2018-11-18 11:14:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2018-11-18 11:14:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:14:24,028 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 68 transitions. [2018-11-18 11:14:24,247 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2018-11-18 11:14:24,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:14:24,247 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:24,255 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 50 states and 71 transitions. [2018-11-18 11:14:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 71 transitions. [2018-11-18 11:14:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:14:24,424 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 52 states and 80 transitions. [2018-11-18 11:14:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions. [2018-11-18 11:14:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:14:24,499 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:24,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 53 states and 80 transitions. [2018-11-18 11:14:24,522 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 80 transitions. [2018-11-18 11:14:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:14:24,522 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 58 states and 92 transitions. [2018-11-18 11:14:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 92 transitions. [2018-11-18 11:14:25,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:14:25,189 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 59 states and 94 transitions. [2018-11-18 11:14:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 94 transitions. [2018-11-18 11:14:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:14:25,357 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:25,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 60 states and 94 transitions. [2018-11-18 11:14:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2018-11-18 11:14:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:14:25,522 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 11:14:25,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 60 states and 92 transitions. [2018-11-18 11:14:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions. [2018-11-18 11:14:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:14:25,657 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 63 states and 95 transitions. [2018-11-18 11:14:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 95 transitions. [2018-11-18 11:14:25,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:14:25,894 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 66 states and 98 transitions. [2018-11-18 11:14:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 98 transitions. [2018-11-18 11:14:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:14:26,164 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:26,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 69 states and 101 transitions. [2018-11-18 11:14:26,438 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2018-11-18 11:14:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:14:26,438 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:26,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 71 states and 112 transitions. [2018-11-18 11:14:26,559 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions. [2018-11-18 11:14:26,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:14:26,560 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:26,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 72 states and 112 transitions. [2018-11-18 11:14:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 112 transitions. [2018-11-18 11:14:26,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:14:26,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 73 states and 112 transitions. [2018-11-18 11:14:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2018-11-18 11:14:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:26,619 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 78 states and 126 transitions. [2018-11-18 11:14:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 126 transitions. [2018-11-18 11:14:27,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:27,425 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 11:14:27,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 78 states and 124 transitions. [2018-11-18 11:14:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 124 transitions. [2018-11-18 11:14:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:27,545 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 79 states and 124 transitions. [2018-11-18 11:14:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2018-11-18 11:14:27,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:27,762 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:27,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 80 states and 125 transitions. [2018-11-18 11:14:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 125 transitions. [2018-11-18 11:14:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:27,944 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 11:14:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 80 states and 124 transitions. [2018-11-18 11:14:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 124 transitions. [2018-11-18 11:14:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:14:28,086 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 81 states and 124 transitions. [2018-11-18 11:14:28,274 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions. [2018-11-18 11:14:28,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:14:28,274 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 84 states and 127 transitions. [2018-11-18 11:14:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 127 transitions. [2018-11-18 11:14:28,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:14:28,545 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:28,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 87 states and 130 transitions. [2018-11-18 11:14:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 130 transitions. [2018-11-18 11:14:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:14:28,838 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 90 states and 133 transitions. [2018-11-18 11:14:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 133 transitions. [2018-11-18 11:14:29,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:14:29,016 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 93 states and 136 transitions. [2018-11-18 11:14:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2018-11-18 11:14:29,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:14:29,271 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 95 states and 149 transitions. [2018-11-18 11:14:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 149 transitions. [2018-11-18 11:14:29,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:14:29,377 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 96 states and 149 transitions. [2018-11-18 11:14:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 149 transitions. [2018-11-18 11:14:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:14:29,407 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 97 states and 149 transitions. [2018-11-18 11:14:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 149 transitions. [2018-11-18 11:14:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:14:29,437 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,446 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 98 states and 149 transitions. [2018-11-18 11:14:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 149 transitions. [2018-11-18 11:14:29,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:29,464 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,483 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-11-18 11:14:29,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 98 states and 147 transitions. [2018-11-18 11:14:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 147 transitions. [2018-11-18 11:14:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:29,646 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 103 states and 164 transitions. [2018-11-18 11:14:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 164 transitions. [2018-11-18 11:14:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:30,640 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 104 states and 164 transitions. [2018-11-18 11:14:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 164 transitions. [2018-11-18 11:14:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:30,889 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 105 states and 164 transitions. [2018-11-18 11:14:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 164 transitions. [2018-11-18 11:14:31,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:31,087 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 106 states and 164 transitions. [2018-11-18 11:14:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 164 transitions. [2018-11-18 11:14:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:14:31,296 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,311 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 107 states and 164 transitions. [2018-11-18 11:14:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 164 transitions. [2018-11-18 11:14:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:14:31,542 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 110 states and 167 transitions. [2018-11-18 11:14:31,848 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 167 transitions. [2018-11-18 11:14:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:14:31,849 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 113 states and 170 transitions. [2018-11-18 11:14:32,174 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 170 transitions. [2018-11-18 11:14:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:14:32,174 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:32,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 116 states and 173 transitions. [2018-11-18 11:14:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 173 transitions. [2018-11-18 11:14:32,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:14:32,505 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:32,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 119 states and 176 transitions. [2018-11-18 11:14:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 176 transitions. [2018-11-18 11:14:32,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:14:32,700 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 122 states and 179 transitions. [2018-11-18 11:14:32,881 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 179 transitions. [2018-11-18 11:14:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:14:32,882 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 11:14:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 136 states and 199 transitions. [2018-11-18 11:14:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 199 transitions. [2018-11-18 11:14:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:14:34,313 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 11:14:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 140 states and 202 transitions. [2018-11-18 11:14:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 202 transitions. [2018-11-18 11:14:34,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:14:34,617 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 11:14:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 148 states and 208 transitions. [2018-11-18 11:14:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 208 transitions. [2018-11-18 11:14:35,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:14:35,035 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:35,046 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-18 11:14:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 152 states and 211 transitions. [2018-11-18 11:14:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 211 transitions. [2018-11-18 11:14:35,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 11:14:35,442 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-18 11:14:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 151 states and 209 transitions. [2018-11-18 11:14:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 209 transitions. [2018-11-18 11:14:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:14:35,807 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:36,071 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 23 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:14:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-18 11:14:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-18 11:14:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 11:14:36,421 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:14:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:36,476 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 58 iterations. [2018-11-18 11:14:36,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 11:14:36 ImpRootNode [2018-11-18 11:14:36,504 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 11:14:36,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:14:36,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:14:36,505 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:14:36,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:22" (3/4) ... [2018-11-18 11:14:36,509 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 11:14:36,556 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_206edb8e-debe-4a3f-8310-74ca882f5e67/bin-2019/ukojak/witness.graphml [2018-11-18 11:14:36,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:14:36,557 INFO L168 Benchmark]: Toolchain (without parser) took 14951.03 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 461.9 MB). Free memory was 959.1 MB in the beginning and 1.2 GB in the end (delta: -273.4 MB). Peak memory consumption was 188.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,558 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:14:36,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,560 INFO L168 Benchmark]: Boogie Preprocessor took 47.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,560 INFO L168 Benchmark]: RCFGBuilder took 148.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,560 INFO L168 Benchmark]: CodeCheck took 14503.76 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 307.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.5 MB). Peak memory consumption was 209.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:36,561 INFO L168 Benchmark]: Witness Printer took 51.96 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:14:36,566 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, 18 locations, 5 error locations. UNSAFE Result, 14.4s OverallTime, 58 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1520639698 SDslu, 251937056 SDs, 0 SdLazy, 283539166 SolverSat, -1956302760 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10363 GetRequests, 9162 SyntacticMatches, 871 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58504 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1273 NumberOfCodeBlocks, 1273 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 1180 ConstructedInterpolants, 0 QuantifiedInterpolants, 198217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 16 PerfectInterpolantSequences, 571/2061 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 - CounterExampleResult [Line: 9]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L6] EXPR, FCALL malloc(10 * sizeof(int)) [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 [L10] COND TRUE i == 5 [L11] free(p) [L11] free(p) [L11] FCALL free(p) [L8] i++ [L8] COND TRUE i < 10 [L9] FCALL p[i] = 1 * 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.32 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 19.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -207.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 148.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * CodeCheck took 14503.76 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 307.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.5 MB). Peak memory consumption was 209.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.96 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...