./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/realloc1_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_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/realloc1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/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 937cfa07aecfb3a07a3e6e685c2e5e481fbe44b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:35:27,325 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:35:27,326 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:35:27,335 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:35:27,335 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:35:27,336 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:35:27,338 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:35:27,339 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:35:27,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:35:27,342 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:35:27,342 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:35:27,343 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:35:27,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:35:27,344 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:35:27,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:35:27,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:35:27,347 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:35:27,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:35:27,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:35:27,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:35:27,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:35:27,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:35:27,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:35:27,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:35:27,356 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:35:27,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:35:27,358 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:35:27,359 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:35:27,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:35:27,360 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:35:27,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:35:27,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:35:27,362 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:35:27,362 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:35:27,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:35:27,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:35:27,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 17:35:27,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:35:27,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:35:27,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:35:27,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:35:27,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:35:27,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:35:27,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:35:27,378 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:35:27,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:35:27,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:35:27,379 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 17:35:27,379 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 17:35:27,379 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 17:35:27,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:35:27,380 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:35:27,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:35:27,380 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:35:27,380 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:35:27,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:35:27,381 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:35:27,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:35:27,383 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:35:27,383 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:35:27,383 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:35:27,383 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:35:27,383 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_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/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 -> 937cfa07aecfb3a07a3e6e685c2e5e481fbe44b8 [2018-11-18 17:35:27,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:35:27,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:35:27,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:35:27,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:35:27,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:35:27,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/realloc1_false-valid-deref.c [2018-11-18 17:35:27,507 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/data/8475c4370/34b1f1521e0a42909e91f352d08021d9/FLAGe4566bc25 [2018-11-18 17:35:27,879 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:35:27,879 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/sv-benchmarks/c/memsafety-ext3/realloc1_false-valid-deref.c [2018-11-18 17:35:27,884 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/data/8475c4370/34b1f1521e0a42909e91f352d08021d9/FLAGe4566bc25 [2018-11-18 17:35:27,899 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/data/8475c4370/34b1f1521e0a42909e91f352d08021d9 [2018-11-18 17:35:27,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:35:27,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:35:27,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:35:27,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:35:27,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:35:27,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:35:27" (1/1) ... [2018-11-18 17:35:27,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e840eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:27, skipping insertion in model container [2018-11-18 17:35:27,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:35:27" (1/1) ... [2018-11-18 17:35:27,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:35:27,940 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:35:28,076 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:35:28,084 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:35:28,096 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:35:28,109 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:35:28,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28 WrapperNode [2018-11-18 17:35:28,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:35:28,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:35:28,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:35:28,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:35:28,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:35:28,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:35:28,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:35:28,138 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:35:28,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:35:28,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:35:28,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:35:28,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:35:28,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:35:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/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 17:35:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:35:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:35:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:35:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:35:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:35:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-18 17:35:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:35:28,476 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:35:28,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:35:28 BoogieIcfgContainer [2018-11-18 17:35:28,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:35:28,477 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:35:28,477 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:35:28,484 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:35:28,485 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:35:28" (1/1) ... [2018-11-18 17:35:28,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:35:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-11-18 17:35:28,518 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 17:35:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 17:35:28,520 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:28,631 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 17:35:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-18 17:35:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-18 17:35:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 17:35:28,638 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:28,695 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 17:35:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2018-11-18 17:35:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-18 17:35:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 17:35:28,732 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:28,769 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 17:35:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-18 17:35:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 17:35:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 17:35:29,035 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:29,119 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 17:35:29,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-11-18 17:35:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 17:35:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:35:29,443 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:29,512 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 17:35:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-11-18 17:35:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-18 17:35:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:35:29,702 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:29,737 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 17:35:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2018-11-18 17:35:29,835 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-11-18 17:35:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:35:29,835 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:30,186 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-18 17:35:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2018-11-18 17:35:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-18 17:35:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:35:30,902 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:35:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2018-11-18 17:35:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2018-11-18 17:35:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:35:31,361 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:31,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2018-11-18 17:35:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2018-11-18 17:35:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:35:31,581 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:35:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2018-11-18 17:35:31,804 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2018-11-18 17:35:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:35:31,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 17:35:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 52 transitions. [2018-11-18 17:35:32,032 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2018-11-18 17:35:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:35:32,032 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:32,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:35:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 37 states and 54 transitions. [2018-11-18 17:35:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2018-11-18 17:35:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:35:32,246 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:35:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 55 transitions. [2018-11-18 17:35:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2018-11-18 17:35:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:35:32,509 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:32,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2018-11-18 17:35:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2018-11-18 17:35:32,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:35:32,750 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:32,813 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:35:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 43 states and 65 transitions. [2018-11-18 17:35:32,955 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 65 transitions. [2018-11-18 17:35:32,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:35:32,956 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:35:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2018-11-18 17:35:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2018-11-18 17:35:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:35:33,236 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:35:33,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 46 states and 69 transitions. [2018-11-18 17:35:33,373 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2018-11-18 17:35:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 17:35:33,374 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 49 states and 77 transitions. [2018-11-18 17:35:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 77 transitions. [2018-11-18 17:35:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 17:35:34,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 17:35:35,399 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 17:35:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:35,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 49 states and 76 transitions. [2018-11-18 17:35:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2018-11-18 17:35:35,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 17:35:35,622 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-18 17:35:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2018-11-18 17:35:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2018-11-18 17:35:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:35:35,922 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 17:35:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 54 states and 81 transitions. [2018-11-18 17:35:36,259 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2018-11-18 17:35:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:35:36,260 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 57 states and 89 transitions. [2018-11-18 17:35:36,536 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 89 transitions. [2018-11-18 17:35:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:35:36,536 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 17:35:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 57 states and 88 transitions. [2018-11-18 17:35:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 88 transitions. [2018-11-18 17:35:36,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:35:36,736 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 17:35:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 60 states and 92 transitions. [2018-11-18 17:35:37,099 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 92 transitions. [2018-11-18 17:35:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 17:35:37,099 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 63 states and 100 transitions. [2018-11-18 17:35:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2018-11-18 17:35:37,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 17:35:37,454 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-11-18 17:35:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 65 states and 103 transitions. [2018-11-18 17:35:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 103 transitions. [2018-11-18 17:35:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 17:35:37,741 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-18 17:35:37,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 65 states and 102 transitions. [2018-11-18 17:35:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2018-11-18 17:35:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:35:37,919 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:35:38,277 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-18 17:35:38,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 68 states and 105 transitions. [2018-11-18 17:35:38,744 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 105 transitions. [2018-11-18 17:35:38,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:35:38,744 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 71 states and 113 transitions. [2018-11-18 17:35:39,175 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 113 transitions. [2018-11-18 17:35:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:35:39,175 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:35:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 71 states and 112 transitions. [2018-11-18 17:35:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 112 transitions. [2018-11-18 17:35:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:35:39,317 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 17:35:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 74 states and 116 transitions. [2018-11-18 17:35:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 116 transitions. [2018-11-18 17:35:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 17:35:39,626 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:39,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:39,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 77 states and 124 transitions. [2018-11-18 17:35:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2018-11-18 17:35:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 17:35:39,983 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-18 17:35:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 79 states and 127 transitions. [2018-11-18 17:35:40,474 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 127 transitions. [2018-11-18 17:35:40,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 17:35:40,474 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-18 17:35:40,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 79 states and 126 transitions. [2018-11-18 17:35:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 126 transitions. [2018-11-18 17:35:40,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:35:40,677 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:40,785 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 17:35:41,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 82 states and 129 transitions. [2018-11-18 17:35:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions. [2018-11-18 17:35:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:35:41,151 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 85 states and 133 transitions. [2018-11-18 17:35:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 133 transitions. [2018-11-18 17:35:41,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:35:41,558 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 17:35:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 85 states and 132 transitions. [2018-11-18 17:35:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 132 transitions. [2018-11-18 17:35:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:35:41,767 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 17:35:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 43 states and 42 transitions. [2018-11-18 17:35:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2018-11-18 17:35:42,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:35:42,171 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 17:35:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:44,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 42 states and 41 transitions. [2018-11-18 17:35:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2018-11-18 17:35:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 17:35:44,735 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:44,786 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 17:35:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 41 states and 40 transitions. [2018-11-18 17:35:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2018-11-18 17:35:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 17:35:45,132 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:35:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:35:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:35:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:35:45,341 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 41 iterations. [2018-11-18 17:35:45,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:35:45 ImpRootNode [2018-11-18 17:35:45,401 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:35:45,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:35:45,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:35:45,402 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:35:45,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:35:28" (3/4) ... [2018-11-18 17:35:45,404 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:35:45,478 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7c0d095a-ce5f-436c-b0ef-01129d7ea7a9/bin-2019/ukojak/witness.graphml [2018-11-18 17:35:45,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:35:45,479 INFO L168 Benchmark]: Toolchain (without parser) took 17575.06 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 335.5 MB). Free memory was 959.8 MB in the beginning and 886.0 MB in the end (delta: 73.8 MB). Peak memory consumption was 409.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:45,480 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:45,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.59 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:45,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.47 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:45,481 INFO L168 Benchmark]: Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:45,482 INFO L168 Benchmark]: RCFGBuilder took 322.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:45,482 INFO L168 Benchmark]: CodeCheck took 16924.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 886.0 MB in the end (delta: 194.8 MB). Peak memory consumption was 423.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:45,483 INFO L168 Benchmark]: Witness Printer took 76.70 ms. Allocated memory is still 1.4 GB. Free memory is still 886.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:45,485 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, 22 locations, 7 error locations. UNSAFE Result, 16.8s OverallTime, 41 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1095109812 SDslu, -1073741704 SDs, 0 SdLazy, 146536540 SolverSat, -1754771104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5924 GetRequests, 5279 SyntacticMatches, 379 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37352 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 754 NumberOfCodeBlocks, 754 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 678 ConstructedInterpolants, 0 QuantifiedInterpolants, 97344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 15 PerfectInterpolantSequences, 1476/2068 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: 16]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L8] EXPR, FCALL malloc(10 * sizeof(int)) [L8] char* p = malloc(10 * sizeof(int)); [L10] int i = 0; [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND TRUE i < 10 [L11] FCALL p[i] = __VERIFIER_nondet_char() [L10] i++ [L10] COND FALSE !(i < 10) [L14] free(p) [L14] free(p) [L14] FCALL free(p) [L16] FCALL p[2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.59 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 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 26.47 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * CodeCheck took 16924.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 886.0 MB in the end (delta: 194.8 MB). Peak memory consumption was 423.9 MB. Max. memory is 11.5 GB. * Witness Printer took 76.70 ms. Allocated memory is still 1.4 GB. Free memory is still 886.0 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...