./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.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_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/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 06914024aa49a34ce88c7dcbc25f89730c27c8e4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:34:40,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:34:40,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:34:40,606 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:34:40,606 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:34:40,607 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:34:40,608 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:34:40,609 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:34:40,610 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:34:40,610 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:34:40,611 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:34:40,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:34:40,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:34:40,612 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:34:40,613 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:34:40,614 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:34:40,614 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:34:40,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:34:40,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:34:40,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:34:40,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:34:40,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:34:40,620 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:34:40,621 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:34:40,621 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:34:40,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:34:40,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:34:40,622 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:34:40,623 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:34:40,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:34:40,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:34:40,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:34:40,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:34:40,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:34:40,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:34:40,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:34:40,626 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 17:34:40,636 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:34:40,636 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:34:40,637 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:34:40,637 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:34:40,637 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:34:40,637 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:34:40,637 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:34:40,637 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:34:40,638 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:34:40,638 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:34:40,639 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:34:40,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:34:40,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:34:40,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:34:40,639 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:34:40,639 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:34:40,639 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:34:40,640 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:34:40,640 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_0ab4da19-3ce7-49c4-a687-a02be38b3384/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 -> 06914024aa49a34ce88c7dcbc25f89730c27c8e4 [2018-11-18 17:34:40,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:34:40,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:34:40,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:34:40,675 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:34:40,675 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:34:40,675 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-11-18 17:34:40,710 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/data/a681a7ca3/bb64708a41354c4ab5603e7062e1ed01/FLAGc111277ce [2018-11-18 17:34:41,116 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:34:41,116 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-11-18 17:34:41,120 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/data/a681a7ca3/bb64708a41354c4ab5603e7062e1ed01/FLAGc111277ce [2018-11-18 17:34:41,128 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/data/a681a7ca3/bb64708a41354c4ab5603e7062e1ed01 [2018-11-18 17:34:41,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:34:41,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:34:41,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:34:41,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:34:41,135 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:34:41,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602e9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41, skipping insertion in model container [2018-11-18 17:34:41,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:34:41,160 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:34:41,263 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:34:41,267 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:34:41,277 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:34:41,285 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:34:41,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41 WrapperNode [2018-11-18 17:34:41,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:34:41,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:34:41,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:34:41,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:34:41,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:34:41,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:34:41,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:34:41,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:34:41,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:34:41,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:34:41,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:34:41,322 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:34:41,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/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 17:34:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:34:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:34:41,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:34:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:34:41,514 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:34:41,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:41 BoogieIcfgContainer [2018-11-18 17:34:41,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:34:41,515 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:34:41,515 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:34:41,521 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:34:41,522 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:41" (1/1) ... [2018-11-18 17:34:41,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:34:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-18 17:34:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-18 17:34:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-11-18 17:34:41,553 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:41,642 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 17:34:41,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-18 17:34:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-18 17:34:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 17:34:41,663 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:41,717 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 17:34:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-18 17:34:41,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-11-18 17:34:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 17:34:41,820 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:41,859 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 17:34:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-11-18 17:34:42,058 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-11-18 17:34:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 17:34:42,058 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-18 17:34:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-18 17:34:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:34:42,164 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-11-18 17:34:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-11-18 17:34:42,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 17:34:42,257 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-11-18 17:34:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-11-18 17:34:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 17:34:42,344 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-11-18 17:34:42,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-11-18 17:34:42,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 17:34:42,439 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,473 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 17:34:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-11-18 17:34:42,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-18 17:34:42,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:34:42,533 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 17:34:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 17:34:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 17:34:42,639 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-11-18 17:34:42,787 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-18 17:34:42,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:34:42,788 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:42,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-11-18 17:34:42,906 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 17:34:42,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 17:34:42,906 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-18 17:34:43,004 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 17:34:43,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:34:43,005 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-11-18 17:34:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 17:34:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 17:34:43,119 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-18 17:34:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 17:34:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 17:34:43,234 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-18 17:34:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 17:34:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 17:34:43,373 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 17:34:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 17:34:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:34:43,487 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-11-18 17:34:43,602 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 17:34:43,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 17:34:43,602 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-11-18 17:34:43,736 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-18 17:34:43,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 17:34:43,737 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:43,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-11-18 17:34:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 17:34:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 17:34:43,882 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-11-18 17:34:44,019 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 17:34:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 17:34:44,019 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-11-18 17:34:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-11-18 17:34:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 17:34:44,200 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-11-18 17:34:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-18 17:34:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 17:34:44,421 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-11-18 17:34:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 17:34:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 17:34:44,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-11-18 17:34:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-18 17:34:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 17:34:44,769 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-11-18 17:34:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-18 17:34:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 17:34:44,924 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:44,972 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-11-18 17:34:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-18 17:34:45,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 17:34:45,084 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-11-18 17:34:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-18 17:34:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 17:34:45,249 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-11-18 17:34:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-18 17:34:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:34:45,420 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-11-18 17:34:45,626 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 17:34:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 17:34:45,626 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-11-18 17:34:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-18 17:34:45,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 17:34:45,811 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-11-18 17:34:45,999 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-11-18 17:34:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:34:45,999 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:46,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-11-18 17:34:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-11-18 17:34:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 17:34:46,177 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-11-18 17:34:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-11-18 17:34:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 17:34:46,380 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-11-18 17:34:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 17:34:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 17:34:46,561 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:46,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-11-18 17:34:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-11-18 17:34:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 17:34:46,756 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:46,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-11-18 17:34:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 17:34:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 17:34:46,982 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-11-18 17:34:47,169 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-11-18 17:34:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 17:34:47,169 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:47,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-11-18 17:34:47,376 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-18 17:34:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 17:34:47,377 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-11-18 17:34:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-11-18 17:34:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 17:34:47,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:47,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-11-18 17:34:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-18 17:34:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 17:34:47,836 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:48,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-11-18 17:34:48,058 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-11-18 17:34:48,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 17:34:48,058 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:48,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2018-11-18 17:34:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-11-18 17:34:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 17:34:48,309 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2018-11-18 17:34:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-11-18 17:34:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 17:34:48,522 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2018-11-18 17:34:48,754 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2018-11-18 17:34:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 17:34:48,754 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:48,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2018-11-18 17:34:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2018-11-18 17:34:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 17:34:48,990 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2018-11-18 17:34:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-11-18 17:34:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 17:34:49,213 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2018-11-18 17:34:49,506 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-11-18 17:34:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 17:34:49,506 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2018-11-18 17:34:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-11-18 17:34:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 17:34:49,740 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2018-11-18 17:34:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-11-18 17:34:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 17:34:49,980 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2018-11-18 17:34:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-11-18 17:34:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 17:34:50,226 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2018-11-18 17:34:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-11-18 17:34:50,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 17:34:50,477 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2018-11-18 17:34:50,722 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-11-18 17:34:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 17:34:50,722 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:50,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2018-11-18 17:34:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-18 17:34:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 17:34:50,970 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:51,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2018-11-18 17:34:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-11-18 17:34:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 17:34:51,234 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2018-11-18 17:34:51,513 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-11-18 17:34:51,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 17:34:51,514 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2018-11-18 17:34:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-11-18 17:34:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 17:34:51,804 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2018-11-18 17:34:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-11-18 17:34:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-18 17:34:52,065 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2018-11-18 17:34:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2018-11-18 17:34:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-18 17:34:52,326 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2018-11-18 17:34:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-11-18 17:34:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:34:52,632 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:52,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2018-11-18 17:34:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2018-11-18 17:34:52,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:34:52,923 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:53,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2018-11-18 17:34:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2018-11-18 17:34:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-18 17:34:53,194 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:53,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2018-11-18 17:34:53,470 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-11-18 17:34:53,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 17:34:53,471 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2018-11-18 17:34:53,774 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2018-11-18 17:34:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:34:53,775 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2018-11-18 17:34:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2018-11-18 17:34:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-18 17:34:54,105 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2018-11-18 17:34:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2018-11-18 17:34:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-18 17:34:54,457 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:54,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:54,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2018-11-18 17:34:54,772 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-11-18 17:34:54,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-18 17:34:54,772 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:55,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2018-11-18 17:34:55,094 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2018-11-18 17:34:55,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 17:34:55,094 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2018-11-18 17:34:55,424 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2018-11-18 17:34:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 17:34:55,424 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2018-11-18 17:34:55,797 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2018-11-18 17:34:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 17:34:55,797 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:56,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2018-11-18 17:34:56,123 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2018-11-18 17:34:56,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-18 17:34:56,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2018-11-18 17:34:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2018-11-18 17:34:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 17:34:56,443 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:56,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2018-11-18 17:34:56,764 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2018-11-18 17:34:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-18 17:34:56,764 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:57,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:57,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2018-11-18 17:34:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2018-11-18 17:34:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-18 17:34:57,094 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:57,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2018-11-18 17:34:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-11-18 17:34:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 17:34:57,453 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:57,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:57,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2018-11-18 17:34:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2018-11-18 17:34:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 17:34:57,798 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2018-11-18 17:34:58,130 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-11-18 17:34:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-18 17:34:58,130 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:58,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2018-11-18 17:34:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-11-18 17:34:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 17:34:58,468 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2018-11-18 17:34:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2018-11-18 17:34:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 17:34:58,822 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:59,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:59,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2018-11-18 17:34:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2018-11-18 17:34:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-18 17:34:59,193 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:59,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2018-11-18 17:34:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2018-11-18 17:34:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-18 17:34:59,596 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:34:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2018-11-18 17:34:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2018-11-18 17:34:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-18 17:34:59,983 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:34:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:35:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:00,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 87 states and 88 transitions. [2018-11-18 17:35:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-11-18 17:35:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 17:35:00,355 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:35:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:35:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-11-18 17:35:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:35:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 86 states and 87 transitions. [2018-11-18 17:35:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2018-11-18 17:35:30,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:35:30,759 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2018-11-18 17:35:30,766 INFO L775 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-11-18 17:35:30,954 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 11 [2018-11-18 17:35:30,969 INFO L579 CodeCheckObserver]: Invariant with dag size 11 [2018-11-18 17:35:31,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,005 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,005 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,005 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,006 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 17:35:31,006 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,006 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:35:31 ImpRootNode [2018-11-18 17:35:31,006 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:35:31,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:35:31,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:35:31,007 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:35:31,007 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:41" (3/4) ... [2018-11-18 17:35:31,010 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:35:31,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 17:35:31,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 17:35:31,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:35:31,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:35:31,032 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] [2018-11-18 17:35:31,032 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-11-18 17:35:31,037 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0ab4da19-3ce7-49c4-a687-a02be38b3384/bin-2019/ukojak/witness.graphml [2018-11-18 17:35:31,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:35:31,038 INFO L168 Benchmark]: Toolchain (without parser) took 49906.72 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 837.8 MB). Free memory was 959.1 MB in the beginning and 1.8 GB in the end (delta: -816.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:31,038 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:31,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:31,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:31,039 INFO L168 Benchmark]: Boogie Preprocessor took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:31,039 INFO L168 Benchmark]: RCFGBuilder took 193.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -237.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:31,040 INFO L168 Benchmark]: CodeCheck took 49491.22 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 637.0 MB). Free memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: -592.4 MB). Peak memory consumption was 931.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:35:31,040 INFO L168 Benchmark]: Witness Printer took 30.79 ms. Allocated memory is still 1.9 GB. Free memory is still 1.8 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:35:31,042 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 3 error locations. SAFE Result, 49.2s OverallTime, 84 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 1290 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39226 GetRequests, 35236 SyntacticMatches, 3318 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191394 ImplicationChecksByTransitivity, 45.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 3650 NumberOfCodeBlocks, 3650 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3567 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 83 InterpolantComputations, 4 PerfectInterpolantSequences, 3240/88560 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2018-11-18 17:35:31,043 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,043 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,043 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,043 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,043 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,044 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] - InvariantResult [Line: 25]: Loop Invariant [2018-11-18 17:35:31,044 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 17:35:31,044 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 193.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -237.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * CodeCheck took 49491.22 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 637.0 MB). Free memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: -592.4 MB). Peak memory consumption was 931.5 MB. Max. memory is 11.5 GB. * Witness Printer took 30.79 ms. Allocated memory is still 1.9 GB. Free memory is still 1.8 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...