./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbc7a588e1092d0916f2339b4d4b9e0fa8415335 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:35:48,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:35:48,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:35:48,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:35:48,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:35:48,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:35:48,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:35:48,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:35:48,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:35:48,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:35:48,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:35:48,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:35:48,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:35:48,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:35:48,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:35:48,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:35:48,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:35:48,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:35:48,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:35:48,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:35:48,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:35:48,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:35:48,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:35:48,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:35:48,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:35:48,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:35:48,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:35:48,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:35:48,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:35:48,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:35:48,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:35:48,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:35:48,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:35:48,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:35:48,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:35:48,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:35:48,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:35:48,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:35:48,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:35:48,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:35:48,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:35:48,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 22:35:48,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:35:48,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:35:48,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:35:48,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:35:48,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:35:48,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:35:48,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:35:48,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:35:48,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:35:48,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:35:48,498 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 22:35:48,498 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 22:35:48,499 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 22:35:48,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:35:48,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:35:48,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:35:48,500 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 22:35:48,500 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 22:35:48,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:35:48,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:35:48,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 22:35:48,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:35:48,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:35:48,502 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 22:35:48,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:35:48,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbc7a588e1092d0916f2339b4d4b9e0fa8415335 [2020-11-29 22:35:48,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:35:48,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:35:48,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:35:48,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:35:48,809 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:35:48,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-11-29 22:35:48,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/data/9cc3b9362/8d752254c716432c8baf2ddc829b7dd5/FLAGecf19df72 [2020-11-29 22:35:49,526 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:35:49,531 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-11-29 22:35:49,554 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/data/9cc3b9362/8d752254c716432c8baf2ddc829b7dd5/FLAGecf19df72 [2020-11-29 22:35:49,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/data/9cc3b9362/8d752254c716432c8baf2ddc829b7dd5 [2020-11-29 22:35:49,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:35:49,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:35:49,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:35:49,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:35:49,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:35:49,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:35:49" (1/1) ... [2020-11-29 22:35:49,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c467ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:49, skipping insertion in model container [2020-11-29 22:35:49,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:35:49" (1/1) ... [2020-11-29 22:35:49,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:35:49,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:35:50,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:35:50,182 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:35:50,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:35:50,298 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:35:50,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50 WrapperNode [2020-11-29 22:35:50,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:35:50,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:35:50,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:35:50,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:35:50,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:35:50,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:35:50,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:35:50,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:35:50,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... [2020-11-29 22:35:50,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:35:50,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:35:50,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:35:50,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:35:50,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:35:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 22:35:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:35:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:35:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:35:50,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:35:50,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:35:50,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:35:50,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:35:50,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:35:51,001 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:35:51,001 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 22:35:51,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:51 BoogieIcfgContainer [2020-11-29 22:35:51,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:35:51,005 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 22:35:51,005 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 22:35:51,015 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 22:35:51,016 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:51" (1/1) ... [2020-11-29 22:35:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:35:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2020-11-29 22:35:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-11-29 22:35:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:35:51,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 47 states and 50 transitions. [2020-11-29 22:35:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-11-29 22:35:51,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:35:51,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 46 states and 49 transitions. [2020-11-29 22:35:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-11-29 22:35:51,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:35:51,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 50 states and 56 transitions. [2020-11-29 22:35:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-11-29 22:35:51,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:35:51,494 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:51,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2020-11-29 22:35:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-11-29 22:35:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:35:51,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:52,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 54 states and 64 transitions. [2020-11-29 22:35:52,317 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-11-29 22:35:52,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:35:52,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:52,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2020-11-29 22:35:52,610 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-11-29 22:35:52,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 22:35:52,611 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 51 states and 56 transitions. [2020-11-29 22:35:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2020-11-29 22:35:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 22:35:53,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 53 states and 59 transitions. [2020-11-29 22:35:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2020-11-29 22:35:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:35:53,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:35:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:54,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 56 states and 66 transitions. [2020-11-29 22:35:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2020-11-29 22:35:54,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:35:54,430 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:35:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 59 states and 73 transitions. [2020-11-29 22:35:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2020-11-29 22:35:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:35:55,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:35:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 60 states and 75 transitions. [2020-11-29 22:35:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2020-11-29 22:35:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:35:55,827 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:35:56,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:56,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 60 states and 74 transitions. [2020-11-29 22:35:56,309 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-11-29 22:35:56,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:35:56,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:56,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 60 states and 72 transitions. [2020-11-29 22:35:56,995 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-11-29 22:35:56,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:35:56,995 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:35:59,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:35:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 62 states and 81 transitions. [2020-11-29 22:35:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2020-11-29 22:35:59,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 22:35:59,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:35:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:35:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:36:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:00,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 67 states and 88 transitions. [2020-11-29 22:36:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2020-11-29 22:36:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 22:36:00,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:36:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 88 transitions. [2020-11-29 22:36:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2020-11-29 22:36:00,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 22:36:00,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:36:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 89 transitions. [2020-11-29 22:36:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2020-11-29 22:36:01,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:36:01,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:36:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 75 states and 98 transitions. [2020-11-29 22:36:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2020-11-29 22:36:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:36:03,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:36:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 77 states and 99 transitions. [2020-11-29 22:36:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2020-11-29 22:36:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:36:03,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:36:06,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 86 states and 110 transitions. [2020-11-29 22:36:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2020-11-29 22:36:06,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:06,293 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:36:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 92 states and 119 transitions. [2020-11-29 22:36:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2020-11-29 22:36:07,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:07,566 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:36:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:07,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 95 states and 122 transitions. [2020-11-29 22:36:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2020-11-29 22:36:07,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:07,609 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:36:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 95 states and 120 transitions. [2020-11-29 22:36:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2020-11-29 22:36:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:08,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:36:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:08,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 95 states and 119 transitions. [2020-11-29 22:36:08,779 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 119 transitions. [2020-11-29 22:36:08,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:08,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:36:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 96 states and 122 transitions. [2020-11-29 22:36:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 122 transitions. [2020-11-29 22:36:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:09,240 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:36:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 101 states and 139 transitions. [2020-11-29 22:36:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 139 transitions. [2020-11-29 22:36:12,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:12,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:36:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 102 states and 141 transitions. [2020-11-29 22:36:13,325 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2020-11-29 22:36:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:13,326 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:36:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 105 states and 145 transitions. [2020-11-29 22:36:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2020-11-29 22:36:14,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:36:14,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:36:14,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:36:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:36:15,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 107 states and 146 transitions. [2020-11-29 22:36:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 146 transitions. [2020-11-29 22:36:15,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:36:15,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:36:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:15,776 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:15,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:15,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:36:15,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:36:15,924 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 30 iterations. [2020-11-29 22:36:15,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 10:36:15 ImpRootNode [2020-11-29 22:36:15,989 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 22:36:15,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:36:15,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:36:15,990 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:36:15,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:35:51" (3/4) ... [2020-11-29 22:36:15,992 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:36:16,051 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_447b1eae-195c-49c5-bd4f-13c24ccdd432/bin/ukojak/witness.graphml [2020-11-29 22:36:16,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:36:16,053 INFO L168 Benchmark]: Toolchain (without parser) took 26245.39 ms. Allocated memory was 115.3 MB in the beginning and 461.4 MB in the end (delta: 346.0 MB). Free memory was 84.9 MB in the beginning and 329.6 MB in the end (delta: -244.7 MB). Peak memory consumption was 99.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,054 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:36:16,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.6 MB in the beginning and 79.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 115.3 MB. Free memory was 79.7 MB in the beginning and 77.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,056 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,056 INFO L168 Benchmark]: RCFGBuilder took 631.53 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 90.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,057 INFO L168 Benchmark]: CodeCheck took 24984.27 ms. Allocated memory was 115.3 MB in the beginning and 461.4 MB in the end (delta: 346.0 MB). Free memory was 90.8 MB in the beginning and 331.7 MB in the end (delta: -240.9 MB). Peak memory consumption was 104.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,058 INFO L168 Benchmark]: Witness Printer took 61.82 ms. Allocated memory is still 461.4 MB. Free memory was 331.7 MB in the beginning and 329.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:36:16,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 47 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.8s, OverallIterations: 30, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -1548615680 SDtfs, 910861588 SDslu, 484576768 SDs, 0 SdLazy, 1399364828 SolverSat, 2126305404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2760 GetRequests, 2396 SyntacticMatches, 60 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40836 ImplicationChecksByTransitivity, 22.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 285 ConstructedInterpolants, 0 QuantifiedInterpolants, 12785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 18 PerfectInterpolantSequences, 47/74 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 547]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L523] int *a, *b; [L524] int n; [L536] n = 1 VAL [a={0:0}, b={0:0}, n=1] [L537] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L540] a = malloc(n * sizeof(*a)) [L541] b = malloc(n * sizeof(*b)) [L542] EXPR b++ VAL [a={-27793:0}, b={-27794:4}, n=1] [L542] *b++ = 0 [L528] int i; [L529] i = 0 VAL [a={-27793:0}, b={-27794:4}, n=1] [L529] COND TRUE i < n VAL [a={-27793:0}, b={-27794:4}, n=1] [L530] a[i] = -1 [L529] i++ VAL [a={-27793:0}, b={-27794:4}, n=1] [L529] COND FALSE !(i < n) [L531] i = 0 VAL [a={-27793:0}, b={-27794:4}, n=1] [L531] COND FALSE !(i < n - 1) VAL [a={-27793:0}, b={-27794:4}, n=1] [L544] b[-1] VAL [a={-27793:0}, b={-27794:4}, n=1] [L544] COND FALSE !(b[-1]) [L547] free(a) VAL [a={-27793:0}, b={-27794:4}, n=1] [L547] free(a) VAL [a={-27793:0}, b={-27794:4}, n=1] [L547] free(a) [L547] free(b) VAL [a={-27793:0}, b={-27794:4}, n=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 488.43 ms. Allocated memory is still 115.3 MB. Free memory was 84.6 MB in the beginning and 79.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 115.3 MB. Free memory was 79.7 MB in the beginning and 77.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 76.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 631.53 ms. Allocated memory is still 115.3 MB. Free memory was 76.1 MB in the beginning and 90.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * CodeCheck took 24984.27 ms. Allocated memory was 115.3 MB in the beginning and 461.4 MB in the end (delta: 346.0 MB). Free memory was 90.8 MB in the beginning and 331.7 MB in the end (delta: -240.9 MB). Peak memory consumption was 104.5 MB. Max. memory is 16.1 GB. * Witness Printer took 61.82 ms. Allocated memory is still 461.4 MB. Free memory was 331.7 MB in the beginning and 329.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...