./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/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 566f1414dafe692faf7ed7456be2d3e7d288640b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:29:10,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:29:10,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:29:10,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:29:10,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:29:10,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:29:10,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:29:10,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:29:10,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:29:10,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:29:10,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:29:10,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:29:10,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:29:10,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:29:10,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:29:10,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:29:10,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:29:10,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:29:10,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:29:10,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:29:10,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:29:10,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:29:10,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:29:10,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:29:10,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:29:10,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:29:10,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:29:10,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:29:10,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:29:10,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:29:10,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:29:10,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:29:10,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:29:10,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:29:10,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:29:10,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:29:10,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:29:10,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:29:10,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:29:10,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:29:10,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:29:10,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:29:10,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:29:10,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:29:10,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:29:10,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:29:10,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:29:10,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:29:10,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:29:10,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:29:10,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:29:10,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:29:10,224 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:29:10,225 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:29:10,225 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:29:10,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:29:10,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:29:10,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:29:10,226 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:29:10,226 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:29:10,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:29:10,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:29:10,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:29:10,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:29:10,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:29:10,227 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:29:10,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:29:10,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566f1414dafe692faf7ed7456be2d3e7d288640b [2020-12-01 16:29:10,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:29:10,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:29:10,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:29:10,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:29:10,611 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:29:10,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset.c [2020-12-01 16:29:10,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/data/5bdde3dc2/525162533ed74219b8daa2854a3b2a8c/FLAG623be9aa3 [2020-12-01 16:29:11,223 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:29:11,224 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/sv-benchmarks/c/ldv-memsafety/memset.c [2020-12-01 16:29:11,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/data/5bdde3dc2/525162533ed74219b8daa2854a3b2a8c/FLAG623be9aa3 [2020-12-01 16:29:11,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/data/5bdde3dc2/525162533ed74219b8daa2854a3b2a8c [2020-12-01 16:29:11,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:29:11,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:29:11,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:11,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:29:11,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:29:11,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3ebad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11, skipping insertion in model container [2020-12-01 16:29:11,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:29:11,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:29:11,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:11,819 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:29:11,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:29:11,888 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:29:11,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11 WrapperNode [2020-12-01 16:29:11,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:29:11,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:11,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:29:11,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:29:11,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:29:11,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:29:11,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:29:11,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:29:11,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... [2020-12-01 16:29:11,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:29:11,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:29:11,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:29:11,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:29:11,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:29:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:29:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:29:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:29:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:29:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:29:12,290 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:29:12,290 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:29:12,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:12 BoogieIcfgContainer [2020-12-01 16:29:12,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:29:12,296 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:29:12,296 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:29:12,308 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:29:12,308 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:12" (1/1) ... [2020-12-01 16:29:12,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:29:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-01 16:29:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-01 16:29:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 16:29:12,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:12,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:12,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-01 16:29:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-01 16:29:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:29:12,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-01 16:29:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-01 16:29:12,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:29:12,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:13,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-12-01 16:29:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-01 16:29:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:29:13,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:29:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:29:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:29:13,312 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-12-01 16:29:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-01 16:29:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:29:13,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-01 16:29:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 16:29:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:29:13,675 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 16:29:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 16:29:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:29:13,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-12-01 16:29:14,077 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-01 16:29:14,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:29:14,077 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 16:29:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 16:29:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:29:14,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-12-01 16:29:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-01 16:29:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:29:14,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:14,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:14,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-12-01 16:29:14,752 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 16:29:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:29:14,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-12-01 16:29:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 16:29:14,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:29:14,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:15,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-12-01 16:29:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-01 16:29:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:29:15,273 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2020-12-01 16:29:15,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-12-01 16:29:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:29:15,506 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-12-01 16:29:15,766 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-01 16:29:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:29:15,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2020-12-01 16:29:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-12-01 16:29:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:29:16,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2020-12-01 16:29:16,281 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-12-01 16:29:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:29:16,282 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2020-12-01 16:29:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-12-01 16:29:16,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:29:16,506 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:16,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2020-12-01 16:29:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-12-01 16:29:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:29:16,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:17,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2020-12-01 16:29:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-12-01 16:29:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:29:17,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-12-01 16:29:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-01 16:29:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 16:29:17,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2020-12-01 16:29:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-12-01 16:29:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:29:17,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2020-12-01 16:29:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-12-01 16:29:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 16:29:17,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:18,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2020-12-01 16:29:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-12-01 16:29:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 16:29:18,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2020-12-01 16:29:18,450 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-12-01 16:29:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:29:18,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:18,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:18,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2020-12-01 16:29:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-12-01 16:29:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:29:18,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2020-12-01 16:29:19,069 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-12-01 16:29:19,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:29:19,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2020-12-01 16:29:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-12-01 16:29:19,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:29:19,390 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2020-12-01 16:29:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-12-01 16:29:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:29:19,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2020-12-01 16:29:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-12-01 16:29:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:29:20,080 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2020-12-01 16:29:20,409 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2020-12-01 16:29:20,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:29:20,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2020-12-01 16:29:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-12-01 16:29:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:29:20,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2020-12-01 16:29:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-12-01 16:29:21,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-01 16:29:21,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:21,290 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2020-12-01 16:29:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-12-01 16:29:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-01 16:29:21,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2020-12-01 16:29:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-12-01 16:29:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-01 16:29:21,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2020-12-01 16:29:22,270 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-12-01 16:29:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 16:29:22,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2020-12-01 16:29:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-12-01 16:29:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-01 16:29:22,650 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:23,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2020-12-01 16:29:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-12-01 16:29:23,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 16:29:23,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:23,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2020-12-01 16:29:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2020-12-01 16:29:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-01 16:29:23,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2020-12-01 16:29:23,867 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-12-01 16:29:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-01 16:29:23,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2020-12-01 16:29:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-12-01 16:29:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 16:29:24,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2020-12-01 16:29:24,717 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-12-01 16:29:24,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 16:29:24,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2020-12-01 16:29:25,125 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-12-01 16:29:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-01 16:29:25,126 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2020-12-01 16:29:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-12-01 16:29:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-01 16:29:25,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:26,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2020-12-01 16:29:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-12-01 16:29:26,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-01 16:29:26,043 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:26,193 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2020-12-01 16:29:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-12-01 16:29:26,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-01 16:29:26,497 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2020-12-01 16:29:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-12-01 16:29:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-01 16:29:26,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:27,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2020-12-01 16:29:27,409 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-12-01 16:29:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 16:29:27,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2020-12-01 16:29:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-12-01 16:29:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-01 16:29:27,876 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:28,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2020-12-01 16:29:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-12-01 16:29:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 16:29:28,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2020-12-01 16:29:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-12-01 16:29:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-01 16:29:28,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:29,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2020-12-01 16:29:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-12-01 16:29:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-01 16:29:29,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2020-12-01 16:29:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-12-01 16:29:29,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 16:29:29,800 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2020-12-01 16:29:30,327 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-12-01 16:29:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 16:29:30,327 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2020-12-01 16:29:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-12-01 16:29:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-01 16:29:30,834 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2020-12-01 16:29:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-12-01 16:29:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-01 16:29:31,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2020-12-01 16:29:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-12-01 16:29:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-01 16:29:31,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2020-12-01 16:29:32,504 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-12-01 16:29:32,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-01 16:29:32,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2020-12-01 16:29:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2020-12-01 16:29:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-01 16:29:33,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:33,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:33,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2020-12-01 16:29:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-12-01 16:29:33,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 16:29:33,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2020-12-01 16:29:34,231 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-12-01 16:29:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-01 16:29:34,231 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2020-12-01 16:29:34,735 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2020-12-01 16:29:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-01 16:29:34,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2020-12-01 16:29:35,308 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2020-12-01 16:29:35,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-01 16:29:35,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2020-12-01 16:29:35,921 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-12-01 16:29:35,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-01 16:29:35,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:36,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2020-12-01 16:29:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-12-01 16:29:36,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-01 16:29:36,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:37,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:37,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2020-12-01 16:29:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-12-01 16:29:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 16:29:37,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2020-12-01 16:29:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2020-12-01 16:29:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-01 16:29:37,880 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2020-12-01 16:29:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2020-12-01 16:29:38,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-01 16:29:38,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2020-12-01 16:29:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2020-12-01 16:29:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-01 16:29:39,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:39,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2020-12-01 16:29:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2020-12-01 16:29:39,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-01 16:29:39,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2020-12-01 16:29:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-12-01 16:29:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-01 16:29:40,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2020-12-01 16:29:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-12-01 16:29:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 16:29:41,170 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2020-12-01 16:29:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-12-01 16:29:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-01 16:29:41,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:42,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2020-12-01 16:29:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2020-12-01 16:29:42,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-01 16:29:42,501 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:42,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2020-12-01 16:29:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2020-12-01 16:29:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-01 16:29:43,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2020-12-01 16:29:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2020-12-01 16:29:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-01 16:29:43,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:44,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2020-12-01 16:29:44,588 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2020-12-01 16:29:44,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 16:29:44,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:45,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:45,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2020-12-01 16:29:45,290 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2020-12-01 16:29:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-01 16:29:45,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2020-12-01 16:29:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2020-12-01 16:29:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-01 16:29:45,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:46,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:46,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2020-12-01 16:29:46,548 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2020-12-01 16:29:46,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-01 16:29:46,549 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2020-12-01 16:29:47,297 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-12-01 16:29:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-01 16:29:47,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:29:48,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:29:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 87 states and 89 transitions. [2020-12-01 16:29:48,061 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2020-12-01 16:29:48,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 16:29:48,061 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:29:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:29:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2020-12-01 16:30:29,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2020-12-01 16:30:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-12-01 16:30:29,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:30:29,443 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2020-12-01 16:30:29,450 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2020-12-01 16:30:29,979 WARN L197 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 9 [2020-12-01 16:30:30,069 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-12-01 16:30:30,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,082 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:30:30,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:30:30 ImpRootNode [2020-12-01 16:30:30,083 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:30:30,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:30:30,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:30:30,084 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:30:30,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:29:12" (3/4) ... [2020-12-01 16:30:30,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:30:30,097 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 16:30:30,098 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:30:30,098 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:30:30,126 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] == \old(unknown-main_\old_#valid-unknown) && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 [2020-12-01 16:30:30,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:30:30,137 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f37576da-3bc9-4e0e-89a9-100be4041936/bin/ukojak/witness.graphml [2020-12-01 16:30:30,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:30:30,144 INFO L168 Benchmark]: Toolchain (without parser) took 78548.20 ms. Allocated memory was 102.8 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 67.6 MB in the beginning and 1.1 GB in the end (delta: -984.5 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,145 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 73.2 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:30,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.47 ms. Allocated memory is still 102.8 MB. Free memory was 67.5 MB in the beginning and 79.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,147 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 78.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:30,148 INFO L168 Benchmark]: Boogie Preprocessor took 33.43 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 77.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,148 INFO L168 Benchmark]: RCFGBuilder took 327.32 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 64.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,151 INFO L168 Benchmark]: CodeCheck took 77787.84 ms. Allocated memory was 102.8 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 64.4 MB in the beginning and 1.1 GB in the end (delta: -989.8 MB). Peak memory consumption was 680.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,153 INFO L168 Benchmark]: Witness Printer took 54.18 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:30,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 77.0s, OverallIterations: 84, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 674 SolverSat, 322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26424 GetRequests, 22600 SyntacticMatches, 3160 SemanticMatches, 664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208871 ImplicationChecksByTransitivity, 68.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 3650 NumberOfCodeBlocks, 3650 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3567 ConstructedInterpolants, 0 QuantifiedInterpolants, 1407485 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 [2020-12-01 16:30:30,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \valid[cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] == \old(unknown-main_\old_#valid-unknown) && \old(unknown-main_\old_#valid-unknown)[cstats] == 0 - InvariantResult [Line: 25]: Loop Invariant [2020-12-01 16:30:30,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:30:30,170 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 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 73.2 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.47 ms. Allocated memory is still 102.8 MB. Free memory was 67.5 MB in the beginning and 79.1 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 78.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.43 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 77.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.32 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 64.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 77787.84 ms. Allocated memory was 102.8 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 64.4 MB in the beginning and 1.1 GB in the end (delta: -989.8 MB). Peak memory consumption was 680.0 MB. Max. memory is 16.1 GB. * Witness Printer took 54.18 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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...