./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/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 b2d654b7b73105d319f19561f723c76c3f2a6a70 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 17:05:42,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 17:05:42,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 17:05:42,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 17:05:42,361 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 17:05:42,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 17:05:42,362 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 17:05:42,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 17:05:42,363 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 17:05:42,364 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 17:05:42,364 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 17:05:42,364 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 17:05:42,365 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 17:05:42,365 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 17:05:42,366 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 17:05:42,366 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 17:05:42,367 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 17:05:42,367 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 17:05:42,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 17:05:42,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 17:05:42,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 17:05:42,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 17:05:42,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 17:05:42,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 17:05:42,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 17:05:42,372 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 17:05:42,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 17:05:42,373 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 17:05:42,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 17:05:42,374 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 17:05:42,374 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 17:05:42,374 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 17:05:42,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 17:05:42,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 17:05:42,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 17:05:42,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 17:05:42,375 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-01 17:05:42,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 17:05:42,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 17:05:42,383 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 17:05:42,383 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 17:05:42,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 17:05:42,383 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 17:05:42,383 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 17:05:42,384 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 17:05:42,384 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 17:05:42,385 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 17:05:42,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 17:05:42,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 17:05:42,385 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 17:05:42,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 17:05:42,385 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 17:05:42,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 17:05:42,385 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_6f30103d-7121-45d6-81e2-e571b91a1f61/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 -> b2d654b7b73105d319f19561f723c76c3f2a6a70 [2018-12-01 17:05:42,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 17:05:42,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 17:05:42,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 17:05:42,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 17:05:42,416 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 17:05:42,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-12-01 17:05:42,454 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/data/7fb397062/b5e11240ebd2479c83babacd8f6f1d41/FLAG3cbae35e0 [2018-12-01 17:05:42,867 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 17:05:42,867 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-12-01 17:05:42,874 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/data/7fb397062/b5e11240ebd2479c83babacd8f6f1d41/FLAG3cbae35e0 [2018-12-01 17:05:42,882 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/data/7fb397062/b5e11240ebd2479c83babacd8f6f1d41 [2018-12-01 17:05:42,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 17:05:42,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 17:05:42,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 17:05:42,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 17:05:42,887 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 17:05:42,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:05:42" (1/1) ... [2018-12-01 17:05:42,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68649384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:42, skipping insertion in model container [2018-12-01 17:05:42,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:05:42" (1/1) ... [2018-12-01 17:05:42,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 17:05:42,911 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 17:05:43,053 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:05:43,098 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 17:05:43,119 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 17:05:43,139 INFO L195 MainTranslator]: Completed translation [2018-12-01 17:05:43,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43 WrapperNode [2018-12-01 17:05:43,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 17:05:43,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 17:05:43,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 17:05:43,140 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 17:05:43,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 17:05:43,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 17:05:43,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 17:05:43,164 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 17:05:43,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 17:05:43,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 17:05:43,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 17:05:43,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 17:05:43,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:05:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 17:05:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 17:05:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 17:05:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 17:05:43,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 17:05:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 17:05:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 17:05:43,416 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 17:05:43,416 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 17:05:43,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:05:43 BoogieIcfgContainer [2018-12-01 17:05:43,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 17:05:43,417 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 17:05:43,417 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 17:05:43,423 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 17:05:43,424 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:05:43" (1/1) ... [2018-12-01 17:05:43,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 17:05:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2018-12-01 17:05:43,453 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-12-01 17:05:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-01 17:05:43,455 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2018-12-01 17:05:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-12-01 17:05:43,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-01 17:05:43,570 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2018-12-01 17:05:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-12-01 17:05:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-01 17:05:43,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:43,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-12-01 17:05:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-12-01 17:05:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-01 17:05:43,762 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2018-12-01 17:05:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-12-01 17:05:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 17:05:43,961 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-12-01 17:05:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-12-01 17:05:44,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 17:05:44,096 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:44,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2018-12-01 17:05:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-12-01 17:05:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 17:05:44,433 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:45,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2018-12-01 17:05:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-12-01 17:05:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 17:05:45,027 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:45,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2018-12-01 17:05:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2018-12-01 17:05:45,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 17:05:45,409 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:47,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2018-12-01 17:05:47,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2018-12-01 17:05:47,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 17:05:47,812 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-12-01 17:05:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-12-01 17:05:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 17:05:48,074 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:48,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2018-12-01 17:05:48,642 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2018-12-01 17:05:48,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 17:05:48,642 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:48,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2018-12-01 17:05:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-12-01 17:05:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 17:05:48,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:48,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2018-12-01 17:05:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2018-12-01 17:05:48,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 17:05:48,968 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 51 transitions. [2018-12-01 17:05:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2018-12-01 17:05:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 17:05:49,938 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:05:51,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 41 states and 53 transitions. [2018-12-01 17:05:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2018-12-01 17:05:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 17:05:51,412 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 17:05:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:05:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 39 states and 50 transitions. [2018-12-01 17:05:51,636 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2018-12-01 17:05:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 17:05:51,636 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:05:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:05:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:01,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2018-12-01 17:06:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2018-12-01 17:06:01,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 17:06:01,053 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:03,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 69 transitions. [2018-12-01 17:06:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2018-12-01 17:06:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 17:06:03,384 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 17:06:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 55 states and 76 transitions. [2018-12-01 17:06:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2018-12-01 17:06:04,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 17:06:04,559 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 62 states and 93 transitions. [2018-12-01 17:06:12,099 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 93 transitions. [2018-12-01 17:06:12,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 17:06:12,099 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:13,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 65 states and 105 transitions. [2018-12-01 17:06:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 105 transitions. [2018-12-01 17:06:13,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 17:06:13,827 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 66 states and 106 transitions. [2018-12-01 17:06:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 106 transitions. [2018-12-01 17:06:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 17:06:14,621 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:15,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:17,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 63 states and 104 transitions. [2018-12-01 17:06:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 104 transitions. [2018-12-01 17:06:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 17:06:17,574 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 65 states and 114 transitions. [2018-12-01 17:06:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 114 transitions. [2018-12-01 17:06:22,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 17:06:22,552 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 17:06:23,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 66 states and 116 transitions. [2018-12-01 17:06:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 116 transitions. [2018-12-01 17:06:23,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 17:06:23,586 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:26,238 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-01 17:06:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 76 states and 147 transitions. [2018-12-01 17:06:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 147 transitions. [2018-12-01 17:06:41,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 17:06:41,769 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-01 17:06:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 79 states and 152 transitions. [2018-12-01 17:06:45,416 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 152 transitions. [2018-12-01 17:06:45,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 17:06:45,416 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 17:06:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 80 states and 153 transitions. [2018-12-01 17:06:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 153 transitions. [2018-12-01 17:06:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 17:06:46,547 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-01 17:06:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:06:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 81 states and 155 transitions. [2018-12-01 17:06:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 155 transitions. [2018-12-01 17:06:47,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 17:06:47,450 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:06:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:06:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:06:53,216 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-12-01 17:06:59,746 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-12-01 17:07:03,040 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-12-01 17:07:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 91 states and 181 transitions. [2018-12-01 17:07:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 181 transitions. [2018-12-01 17:07:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 17:07:08,273 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:07:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 92 states and 186 transitions. [2018-12-01 17:07:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 186 transitions. [2018-12-01 17:07:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 17:07:09,235 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-01 17:07:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 93 states and 187 transitions. [2018-12-01 17:07:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 187 transitions. [2018-12-01 17:07:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:07:10,282 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 17:07:15,460 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-12-01 17:07:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 109 states and 235 transitions. [2018-12-01 17:07:32,667 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 235 transitions. [2018-12-01 17:07:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:07:32,668 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-01 17:07:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:35,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 112 states and 239 transitions. [2018-12-01 17:07:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 239 transitions. [2018-12-01 17:07:35,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:07:35,194 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 17:07:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 112 states and 238 transitions. [2018-12-01 17:07:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 238 transitions. [2018-12-01 17:07:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 17:07:36,467 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:36,489 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-01 17:07:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:07:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 113 states and 241 transitions. [2018-12-01 17:07:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 241 transitions. [2018-12-01 17:07:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 17:07:37,475 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:07:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:07:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:07:45,258 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-12-01 17:07:48,089 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-12-01 17:07:49,760 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2018-12-01 17:07:58,933 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2018-12-01 17:08:11,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 129 states and 289 transitions. [2018-12-01 17:08:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 289 transitions. [2018-12-01 17:08:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 17:08:11,853 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:08:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 130 states and 291 transitions. [2018-12-01 17:08:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 291 transitions. [2018-12-01 17:08:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 17:08:13,501 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:13,520 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-01 17:08:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 131 states and 295 transitions. [2018-12-01 17:08:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 295 transitions. [2018-12-01 17:08:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 17:08:14,798 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 132 states and 296 transitions. [2018-12-01 17:08:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 296 transitions. [2018-12-01 17:08:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 17:08:16,326 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:08:24,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 138 states and 310 transitions. [2018-12-01 17:08:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 310 transitions. [2018-12-01 17:08:24,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:08:24,366 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:31,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 142 states and 321 transitions. [2018-12-01 17:08:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 321 transitions. [2018-12-01 17:08:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:08:31,284 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 143 states and 327 transitions. [2018-12-01 17:08:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 327 transitions. [2018-12-01 17:08:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:08:32,986 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 144 states and 330 transitions. [2018-12-01 17:08:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 330 transitions. [2018-12-01 17:08:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:08:35,161 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 145 states and 332 transitions. [2018-12-01 17:08:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 332 transitions. [2018-12-01 17:08:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 17:08:36,848 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-01 17:08:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:08:39,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 145 states and 329 transitions. [2018-12-01 17:08:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 329 transitions. [2018-12-01 17:08:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:08:39,831 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:08:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:08:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 148 states and 340 transitions. [2018-12-01 17:09:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 340 transitions. [2018-12-01 17:09:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:09:04,890 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 153 states and 354 transitions. [2018-12-01 17:09:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 354 transitions. [2018-12-01 17:09:11,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:09:11,821 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:20,221 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-12-01 17:09:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 158 states and 371 transitions. [2018-12-01 17:09:22,007 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 371 transitions. [2018-12-01 17:09:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:09:22,007 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:24,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 159 states and 377 transitions. [2018-12-01 17:09:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 377 transitions. [2018-12-01 17:09:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:09:24,112 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:25,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 160 states and 380 transitions. [2018-12-01 17:09:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 380 transitions. [2018-12-01 17:09:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 17:09:25,928 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 17:09:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 161 states and 382 transitions. [2018-12-01 17:09:27,522 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 382 transitions. [2018-12-01 17:09:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-01 17:09:27,523 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-01 17:09:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 166 states and 397 transitions. [2018-12-01 17:09:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 397 transitions. [2018-12-01 17:09:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-01 17:09:36,625 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-01 17:09:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 168 states and 402 transitions. [2018-12-01 17:09:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 402 transitions. [2018-12-01 17:09:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-01 17:09:42,042 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:42,873 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-01 17:09:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:09:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 174 states and 418 transitions. [2018-12-01 17:09:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 418 transitions. [2018-12-01 17:09:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-01 17:09:52,360 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 17:09:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 17:09:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-01 17:10:02,278 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-12-01 17:10:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 17:10:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 47 states and 84 transitions. [2018-12-01 17:10:06,784 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2018-12-01 17:10:06,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 17:10:06,784 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 57 iterations. [2018-12-01 17:10:06,800 INFO L779 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2018-12-01 17:10:07,349 WARN L180 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2018-12-01 17:10:07,518 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2018-12-01 17:10:07,762 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-01 17:10:07,932 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2018-12-01 17:10:08,201 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-01 17:10:08,206 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-01 17:10:08,209 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,212 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,212 INFO L583 CodeCheckObserver]: Invariant with dag size 49 [2018-12-01 17:10:08,214 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,214 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,214 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,215 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,216 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,216 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,216 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,217 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,217 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,217 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,218 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,219 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,219 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,219 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-01 17:10:08,219 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,220 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:10:08 ImpRootNode [2018-12-01 17:10:08,220 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 17:10:08,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 17:10:08,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 17:10:08,221 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 17:10:08,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:05:43" (3/4) ... [2018-12-01 17:10:08,223 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 17:10:08,229 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-01 17:10:08,229 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-01 17:10:08,229 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 17:10:08,245 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s2]) && 1 == \valid[s1]) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s1) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 1 <= s2) || ((((((((((s1 == 0 && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 <= 0) && 0 <= s2) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 1 == \valid[s1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) [2018-12-01 17:10:08,245 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) [2018-12-01 17:10:08,245 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-01 17:10:08,261 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6f30103d-7121-45d6-81e2-e571b91a1f61/bin-2019/ukojak/witness.graphml [2018-12-01 17:10:08,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 17:10:08,262 INFO L168 Benchmark]: Toolchain (without parser) took 265377.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.7 MB in the beginning and 848.6 MB in the end (delta: 103.1 MB). Peak memory consumption was 219.0 MB. Max. memory is 11.5 GB. [2018-12-01 17:10:08,262 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:10:08,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-01 17:10:08,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:10:08,262 INFO L168 Benchmark]: Boogie Preprocessor took 14.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 17:10:08,262 INFO L168 Benchmark]: RCFGBuilder took 237.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-12-01 17:10:08,263 INFO L168 Benchmark]: CodeCheck took 264803.72 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -22.5 MB). Free memory was 1.1 GB in the beginning and 855.0 MB in the end (delta: 234.4 MB). Peak memory consumption was 373.3 MB. Max. memory is 11.5 GB. [2018-12-01 17:10:08,263 INFO L168 Benchmark]: Witness Printer took 40.58 ms. Allocated memory is still 1.1 GB. Free memory was 855.0 MB in the beginning and 848.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-12-01 17:10:08,264 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, 41 locations, 15 error locations. SAFE Result, 263.3s OverallTime, 57 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1391195456 SDslu, 579803296 SDs, 0 SdLazy, 885965470 SolverSat, -1203861478 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 51.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12022 GetRequests, 10729 SyntacticMatches, 433 SemanticMatches, 860 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345665 ImplicationChecksByTransitivity, 259.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 969 ConstructedInterpolants, 0 QuantifiedInterpolants, 370025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 56 InterpolantComputations, 25 PerfectInterpolantSequences, 320/1030 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 553]: Loop Invariant [2018-12-01 17:10:08,265 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,265 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 545]: Loop Invariant [2018-12-01 17:10:08,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,268 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,270 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,270 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 17:10:08,270 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-01 17:10:08,270 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s2]) && 1 == \valid[s1]) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s1) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 1 <= s2) || ((((((((((s1 == 0 && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 <= 0) && 0 <= s2) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 1 == \valid[s1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) - InvariantResult [Line: 540]: Loop Invariant [2018-12-01 17:10:08,271 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 17:10:08,271 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 237.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * CodeCheck took 264803.72 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -22.5 MB). Free memory was 1.1 GB in the beginning and 855.0 MB in the end (delta: 234.4 MB). Peak memory consumption was 373.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.58 ms. Allocated memory is still 1.1 GB. Free memory was 855.0 MB in the beginning and 848.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...