./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 06914024aa49a34ce88c7dcbc25f89730c27c8e4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 12:31:25,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 12:31:25,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 12:31:25,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 12:31:25,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 12:31:25,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 12:31:25,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 12:31:25,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 12:31:25,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 12:31:25,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 12:31:25,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 12:31:25,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 12:31:25,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 12:31:25,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 12:31:25,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 12:31:25,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 12:31:25,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 12:31:25,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 12:31:25,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 12:31:25,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 12:31:25,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 12:31:25,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 12:31:25,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 12:31:25,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 12:31:25,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 12:31:25,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 12:31:25,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 12:31:25,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 12:31:25,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 12:31:25,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 12:31:25,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 12:31:25,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 12:31:25,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 12:31:25,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 12:31:25,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 12:31:25,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 12:31:25,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 12:31:25,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 12:31:25,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 12:31:25,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 12:31:25,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 12:31:25,251 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-12-01 12:31:25,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 12:31:25,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 12:31:25,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 12:31:25,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 12:31:25,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 12:31:25,262 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 12:31:25,263 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 12:31:25,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 12:31:25,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 12:31:25,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 12:31:25,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 12:31:25,264 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 12:31:25,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 12:31:25,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06914024aa49a34ce88c7dcbc25f89730c27c8e4 [2019-12-01 12:31:25,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 12:31:25,373 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 12:31:25,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 12:31:25,378 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 12:31:25,378 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 12:31:25,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset3.c [2019-12-01 12:31:25,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/data/e310029c4/9b6b27af3bf849adb0c0ec477565e36f/FLAG2a3304579 [2019-12-01 12:31:25,828 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 12:31:25,828 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/sv-benchmarks/c/ldv-memsafety/memset3.c [2019-12-01 12:31:25,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/data/e310029c4/9b6b27af3bf849adb0c0ec477565e36f/FLAG2a3304579 [2019-12-01 12:31:26,201 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/data/e310029c4/9b6b27af3bf849adb0c0ec477565e36f [2019-12-01 12:31:26,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 12:31:26,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 12:31:26,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 12:31:26,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 12:31:26,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 12:31:26,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247a03cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26, skipping insertion in model container [2019-12-01 12:31:26,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 12:31:26,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 12:31:26,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 12:31:26,331 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 12:31:26,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 12:31:26,384 INFO L208 MainTranslator]: Completed translation [2019-12-01 12:31:26,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26 WrapperNode [2019-12-01 12:31:26,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 12:31:26,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 12:31:26,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 12:31:26,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 12:31:26,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 12:31:26,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 12:31:26,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 12:31:26,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 12:31:26,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 12:31:26,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 12:31:26,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 12:31:26,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 12:31:26,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:31:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 12:31:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 12:31:26,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 12:31:26,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 12:31:26,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 12:31:26,589 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 12:31:26,590 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-01 12:31:26,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:31:26 BoogieIcfgContainer [2019-12-01 12:31:26,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 12:31:26,591 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 12:31:26,591 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 12:31:26,597 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 12:31:26,597 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:31:26" (1/1) ... [2019-12-01 12:31:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 12:31:26,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-01 12:31:26,625 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-01 12:31:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 12:31:26,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:26,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-01 12:31:26,738 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-01 12:31:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 12:31:26,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-01 12:31:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-01 12:31:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 12:31:26,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2019-12-01 12:31:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-12-01 12:31:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 12:31:27,054 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2019-12-01 12:31:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-12-01 12:31:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 12:31:27,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2019-12-01 12:31:27,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-12-01 12:31:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 12:31:27,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-12-01 12:31:27,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-12-01 12:31:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 12:31:27,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2019-12-01 12:31:27,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-01 12:31:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 12:31:27,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2019-12-01 12:31:27,544 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-12-01 12:31:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 12:31:27,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-12-01 12:31:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-12-01 12:31:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 12:31:27,662 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,703 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2019-12-01 12:31:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-01 12:31:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 12:31:27,782 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:27,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-12-01 12:31:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-01 12:31:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 12:31:27,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:27,958 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2019-12-01 12:31:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-12-01 12:31:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 12:31:28,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2019-12-01 12:31:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-12-01 12:31:28,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 12:31:28,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,201 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2019-12-01 12:31:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-12-01 12:31:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 12:31:28,286 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2019-12-01 12:31:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-12-01 12:31:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 12:31:28,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2019-12-01 12:31:28,555 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-12-01 12:31:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 12:31:28,555 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2019-12-01 12:31:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-12-01 12:31:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-01 12:31:28,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2019-12-01 12:31:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-12-01 12:31:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-01 12:31:28,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2019-12-01 12:31:29,020 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-12-01 12:31:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-01 12:31:29,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2019-12-01 12:31:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2019-12-01 12:31:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 12:31:29,185 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2019-12-01 12:31:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-12-01 12:31:29,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-01 12:31:29,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2019-12-01 12:31:29,521 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-12-01 12:31:29,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 12:31:29,522 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2019-12-01 12:31:29,697 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2019-12-01 12:31:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 12:31:29,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2019-12-01 12:31:29,876 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-12-01 12:31:29,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-01 12:31:29,876 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:30,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2019-12-01 12:31:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2019-12-01 12:31:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 12:31:30,087 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2019-12-01 12:31:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-12-01 12:31:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 12:31:30,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2019-12-01 12:31:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2019-12-01 12:31:30,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-01 12:31:30,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2019-12-01 12:31:30,692 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2019-12-01 12:31:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-01 12:31:30,693 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:30,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2019-12-01 12:31:30,894 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2019-12-01 12:31:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-01 12:31:30,894 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:31,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2019-12-01 12:31:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-12-01 12:31:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-01 12:31:31,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2019-12-01 12:31:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-12-01 12:31:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-01 12:31:31,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2019-12-01 12:31:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2019-12-01 12:31:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-01 12:31:31,522 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2019-12-01 12:31:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-12-01 12:31:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-01 12:31:31,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:31,805 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:31,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2019-12-01 12:31:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2019-12-01 12:31:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-01 12:31:31,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:32,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2019-12-01 12:31:32,182 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2019-12-01 12:31:32,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-01 12:31:32,182 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:32,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2019-12-01 12:31:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2019-12-01 12:31:32,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-01 12:31:32,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:32,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:32,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2019-12-01 12:31:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2019-12-01 12:31:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-01 12:31:32,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:32,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2019-12-01 12:31:32,907 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2019-12-01 12:31:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-01 12:31:32,907 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2019-12-01 12:31:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2019-12-01 12:31:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-01 12:31:33,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2019-12-01 12:31:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2019-12-01 12:31:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-12-01 12:31:33,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:33,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2019-12-01 12:31:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2019-12-01 12:31:33,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-01 12:31:33,697 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2019-12-01 12:31:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2019-12-01 12:31:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-01 12:31:33,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2019-12-01 12:31:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2019-12-01 12:31:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-01 12:31:34,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2019-12-01 12:31:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2019-12-01 12:31:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-01 12:31:34,493 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2019-12-01 12:31:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2019-12-01 12:31:34,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-01 12:31:34,780 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2019-12-01 12:31:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2019-12-01 12:31:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-01 12:31:35,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2019-12-01 12:31:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2019-12-01 12:31:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-01 12:31:35,390 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2019-12-01 12:31:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2019-12-01 12:31:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-01 12:31:35,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2019-12-01 12:31:35,995 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2019-12-01 12:31:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-01 12:31:35,995 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:36,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2019-12-01 12:31:36,300 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2019-12-01 12:31:36,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-01 12:31:36,301 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2019-12-01 12:31:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2019-12-01 12:31:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-12-01 12:31:36,609 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:36,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:36,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2019-12-01 12:31:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2019-12-01 12:31:36,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-12-01 12:31:36,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2019-12-01 12:31:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2019-12-01 12:31:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-01 12:31:37,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2019-12-01 12:31:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2019-12-01 12:31:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-12-01 12:31:37,551 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:37,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2019-12-01 12:31:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2019-12-01 12:31:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-01 12:31:37,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:38,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2019-12-01 12:31:38,222 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2019-12-01 12:31:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-12-01 12:31:38,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:38,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:38,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2019-12-01 12:31:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2019-12-01 12:31:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-01 12:31:38,574 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2019-12-01 12:31:38,909 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2019-12-01 12:31:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-12-01 12:31:38,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2019-12-01 12:31:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2019-12-01 12:31:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-12-01 12:31:39,247 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2019-12-01 12:31:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2019-12-01 12:31:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-01 12:31:39,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2019-12-01 12:31:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2019-12-01 12:31:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-12-01 12:31:39,967 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:40,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2019-12-01 12:31:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2019-12-01 12:31:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-01 12:31:40,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2019-12-01 12:31:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2019-12-01 12:31:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-01 12:31:40,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2019-12-01 12:31:41,072 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2019-12-01 12:31:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-12-01 12:31:41,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:41,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:41,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2019-12-01 12:31:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2019-12-01 12:31:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-01 12:31:41,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2019-12-01 12:31:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2019-12-01 12:31:41,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-01 12:31:41,838 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2019-12-01 12:31:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2019-12-01 12:31:42,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-12-01 12:31:42,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:42,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2019-12-01 12:31:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2019-12-01 12:31:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-12-01 12:31:42,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:43,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2019-12-01 12:31:43,000 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2019-12-01 12:31:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-01 12:31:43,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2019-12-01 12:31:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2019-12-01 12:31:43,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-12-01 12:31:43,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:43,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2019-12-01 12:31:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2019-12-01 12:31:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-01 12:31:43,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2019-12-01 12:31:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2019-12-01 12:31:44,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-01 12:31:44,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2019-12-01 12:31:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2019-12-01 12:31:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-12-01 12:31:44,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2019-12-01 12:31:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2019-12-01 12:31:45,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-12-01 12:31:45,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2019-12-01 12:31:45,507 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2019-12-01 12:31:45,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-12-01 12:31:45,508 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2019-12-01 12:31:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2019-12-01 12:31:45,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-12-01 12:31:45,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:46,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2019-12-01 12:31:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2019-12-01 12:31:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-12-01 12:31:46,403 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:46,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2019-12-01 12:31:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2019-12-01 12:31:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-12-01 12:31:46,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2019-12-01 12:31:47,323 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2019-12-01 12:31:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-12-01 12:31:47,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:47,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:47,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2019-12-01 12:31:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2019-12-01 12:31:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-12-01 12:31:47,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2019-12-01 12:31:48,277 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2019-12-01 12:31:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-12-01 12:31:48,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 12:31:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:31:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 87 states and 88 transitions. [2019-12-01 12:31:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2019-12-01 12:31:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-12-01 12:31:48,741 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 12:31:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 12:31:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2019-12-01 12:33:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 12:33:04,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 86 states and 87 transitions. [2019-12-01 12:33:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2019-12-01 12:33:04,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-01 12:33:04,034 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2019-12-01 12:33:04,040 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2019-12-01 12:33:04,253 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 9 [2019-12-01 12:33:04,270 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2019-12-01 12:33:04,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,280 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-12-01 12:33:04,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 12:33:04 ImpRootNode [2019-12-01 12:33:04,280 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 12:33:04,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 12:33:04,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 12:33:04,281 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 12:33:04,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:31:26" (3/4) ... [2019-12-01 12:33:04,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-01 12:33:04,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-01 12:33:04,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-01 12:33:04,289 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-01 12:33:04,307 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 [2019-12-01 12:33:04,307 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2019-12-01 12:33:04,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_74660c92-c625-4a69-821d-5e4ba6bd1a59/bin/ukojak/witness.graphml [2019-12-01 12:33:04,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 12:33:04,315 INFO L168 Benchmark]: Toolchain (without parser) took 98109.82 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 943.5 MB in the beginning and 837.8 MB in the end (delta: 105.7 MB). Peak memory consumption was 412.4 MB. Max. memory is 11.5 GB. [2019-12-01 12:33:04,315 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 12:33:04,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-01 12:33:04,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 12:33:04,316 INFO L168 Benchmark]: Boogie Preprocessor took 13.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 12:33:04,316 INFO L168 Benchmark]: RCFGBuilder took 169.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-01 12:33:04,317 INFO L168 Benchmark]: CodeCheck took 97689.63 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 208.1 MB). Free memory was 1.1 GB in the beginning and 841.1 MB in the end (delta: 229.4 MB). Peak memory consumption was 437.5 MB. Max. memory is 11.5 GB. [2019-12-01 12:33:04,317 INFO L168 Benchmark]: Witness Printer took 33.01 ms. Allocated memory is still 1.3 GB. Free memory was 841.1 MB in the beginning and 837.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-12-01 12:33:04,319 INFO L335 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, 9 locations, 3 error locations. Result: SAFE, OverallTime: 97.4s, OverallIterations: 84, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 1290 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39226 GetRequests, 35236 SyntacticMatches, 3318 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191394 ImplicationChecksByTransitivity, 93.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 3650 NumberOfCodeBlocks, 3650 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3567 ConstructedInterpolants, 0 QuantifiedInterpolants, 1047233 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 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: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2019-12-01 12:33:04,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 - InvariantResult [Line: 25]: Loop Invariant [2019-12-01 12:33:04,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 12:33:04,321 WARN L1295 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 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * CodeCheck took 97689.63 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 208.1 MB). Free memory was 1.1 GB in the beginning and 841.1 MB in the end (delta: 229.4 MB). Peak memory consumption was 437.5 MB. Max. memory is 11.5 GB. * Witness Printer took 33.01 ms. Allocated memory is still 1.3 GB. Free memory was 841.1 MB in the beginning and 837.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable 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...