./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/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-a4ecdab [2020-11-29 19:27:07,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:27:07,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:27:07,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:27:07,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:27:07,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:27:07,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:27:07,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:27:07,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:27:07,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:27:07,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:27:07,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:27:07,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:27:07,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:27:07,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:27:07,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:27:07,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:27:07,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:27:07,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:27:07,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:27:07,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:27:07,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:27:07,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:27:07,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:27:07,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:27:07,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:27:07,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:27:07,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:27:07,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:27:07,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:27:07,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:27:07,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:27:07,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:27:07,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:27:07,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:27:07,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:27:07,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:27:07,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:27:07,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:27:07,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:27:07,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:27:07,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 19:27:07,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:27:07,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:27:07,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:27:07,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:27:07,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:27:07,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:27:07,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:27:07,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:27:07,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:27:07,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:27:07,739 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 19:27:07,740 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 19:27:07,740 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 19:27:07,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:27:07,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:27:07,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:27:07,741 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:27:07,741 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:27:07,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:27:07,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:27:07,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:27:07,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:27:07,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:27:07,743 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:27:07,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:27:07,744 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_8a83d089-1164-44ed-b229-bf1d3033238b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566f1414dafe692faf7ed7456be2d3e7d288640b [2020-11-29 19:27:08,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:27:08,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:27:08,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:27:08,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:27:08,108 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:27:08,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset.c [2020-11-29 19:27:08,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/data/1d840ebed/1e06ade5516b4bf39298093d25be9321/FLAG417cb21ca [2020-11-29 19:27:08,742 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:27:08,742 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/sv-benchmarks/c/ldv-memsafety/memset.c [2020-11-29 19:27:08,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/data/1d840ebed/1e06ade5516b4bf39298093d25be9321/FLAG417cb21ca [2020-11-29 19:27:09,136 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/data/1d840ebed/1e06ade5516b4bf39298093d25be9321 [2020-11-29 19:27:09,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:27:09,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:27:09,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:27:09,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:27:09,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:27:09,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebac737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09, skipping insertion in model container [2020-11-29 19:27:09,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:27:09,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:27:09,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:27:09,347 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:27:09,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:27:09,403 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:27:09,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09 WrapperNode [2020-11-29 19:27:09,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:27:09,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:27:09,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:27:09,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:27:09,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:27:09,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:27:09,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:27:09,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:27:09,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:27:09,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:27:09,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:27:09,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:27:09,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/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 [2020-11-29 19:27:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:27:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:27:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:27:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:27:09,939 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:27:09,939 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:27:09,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:09 BoogieIcfgContainer [2020-11-29 19:27:09,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:27:09,943 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:27:09,943 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:27:09,955 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:27:09,956 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-29 19:27:10,016 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-29 19:27:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-29 19:27:10,019 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-29 19:27:10,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-29 19:27:10,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 19:27:10,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-29 19:27:10,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-29 19:27:10,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:27:10,560 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-29 19:27:10,690 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-29 19:27:10,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:27:10,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-29 19:27:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-29 19:27:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:27:10,861 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-29 19:27:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-29 19:27:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:11,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,196 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-29 19:27:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-29 19:27:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:27:11,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-29 19:27:11,567 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-29 19:27:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:27:11,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-29 19:27:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-29 19:27:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:27:11,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:12,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-29 19:27:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 19:27:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:27:12,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-11-29 19:27:12,284 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-29 19:27:12,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:27:12,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-11-29 19:27:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-29 19:27:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:27:12,563 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:12,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-11-29 19:27:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-29 19:27:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:27:12,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-11-29 19:27:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-11-29 19:27:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:27:13,133 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2020-11-29 19:27:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-11-29 19:27:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:27:13,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-11-29 19:27:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-11-29 19:27:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 19:27:13,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2020-11-29 19:27:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-11-29 19:27:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:27:13,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2020-11-29 19:27:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-29 19:27:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 19:27:14,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2020-11-29 19:27:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-11-29 19:27:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 19:27:14,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2020-11-29 19:27:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-11-29 19:27:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 19:27:14,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:15,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2020-11-29 19:27:15,118 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-11-29 19:27:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:27:15,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:15,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-11-29 19:27:15,398 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-29 19:27:15,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 19:27:15,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2020-11-29 19:27:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-11-29 19:27:15,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:27:15,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2020-11-29 19:27:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-11-29 19:27:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 19:27:16,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2020-11-29 19:27:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-29 19:27:16,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 19:27:16,367 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2020-11-29 19:27:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-11-29 19:27:16,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 19:27:16,719 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2020-11-29 19:27:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-11-29 19:27:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 19:27:17,093 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:17,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:17,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2020-11-29 19:27:17,522 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-11-29 19:27:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 19:27:17,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2020-11-29 19:27:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2020-11-29 19:27:17,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 19:27:17,910 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2020-11-29 19:27:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-11-29 19:27:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 19:27:18,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2020-11-29 19:27:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2020-11-29 19:27:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 19:27:18,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2020-11-29 19:27:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2020-11-29 19:27:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 19:27:19,068 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:19,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2020-11-29 19:27:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-11-29 19:27:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-29 19:27:19,480 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2020-11-29 19:27:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-11-29 19:27:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-29 19:27:19,896 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:20,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2020-11-29 19:27:20,376 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-11-29 19:27:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-29 19:27:20,376 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2020-11-29 19:27:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-11-29 19:27:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-29 19:27:20,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2020-11-29 19:27:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-11-29 19:27:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-29 19:27:21,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:21,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2020-11-29 19:27:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-11-29 19:27:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-29 19:27:21,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2020-11-29 19:27:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-11-29 19:27:22,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-29 19:27:22,227 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2020-11-29 19:27:22,723 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2020-11-29 19:27:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-29 19:27:22,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:23,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2020-11-29 19:27:23,309 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-11-29 19:27:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-29 19:27:23,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:23,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2020-11-29 19:27:23,773 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-11-29 19:27:23,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-29 19:27:23,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:24,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2020-11-29 19:27:24,304 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-11-29 19:27:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-29 19:27:24,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:24,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2020-11-29 19:27:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-11-29 19:27:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 19:27:24,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:25,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2020-11-29 19:27:25,338 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-11-29 19:27:25,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 19:27:25,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2020-11-29 19:27:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2020-11-29 19:27:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-29 19:27:25,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:26,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2020-11-29 19:27:26,460 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2020-11-29 19:27:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-29 19:27:26,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:26,659 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:27,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2020-11-29 19:27:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-11-29 19:27:27,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-29 19:27:27,021 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2020-11-29 19:27:27,498 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-11-29 19:27:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-29 19:27:27,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2020-11-29 19:27:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-11-29 19:27:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-29 19:27:28,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2020-11-29 19:27:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-11-29 19:27:28,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-29 19:27:28,654 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:29,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2020-11-29 19:27:29,245 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-11-29 19:27:29,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 19:27:29,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2020-11-29 19:27:29,818 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-11-29 19:27:29,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 19:27:29,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:30,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2020-11-29 19:27:30,399 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-11-29 19:27:30,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 19:27:30,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2020-11-29 19:27:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-11-29 19:27:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 19:27:31,039 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2020-11-29 19:27:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-11-29 19:27:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-29 19:27:31,586 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2020-11-29 19:27:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-11-29 19:27:32,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-29 19:27:32,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2020-11-29 19:27:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-11-29 19:27:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-29 19:27:32,749 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2020-11-29 19:27:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2020-11-29 19:27:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-29 19:27:33,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:34,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2020-11-29 19:27:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2020-11-29 19:27:34,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-29 19:27:34,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2020-11-29 19:27:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-11-29 19:27:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-29 19:27:34,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2020-11-29 19:27:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-11-29 19:27:35,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-29 19:27:35,558 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2020-11-29 19:27:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2020-11-29 19:27:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-11-29 19:27:36,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:36,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2020-11-29 19:27:36,993 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2020-11-29 19:27:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-29 19:27:36,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2020-11-29 19:27:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-11-29 19:27:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-29 19:27:37,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:37,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2020-11-29 19:27:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2020-11-29 19:27:38,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-11-29 19:27:38,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2020-11-29 19:27:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2020-11-29 19:27:39,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-29 19:27:39,067 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:39,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2020-11-29 19:27:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2020-11-29 19:27:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-11-29 19:27:39,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2020-11-29 19:27:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2020-11-29 19:27:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-29 19:27:40,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2020-11-29 19:27:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2020-11-29 19:27:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-11-29 19:27:41,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2020-11-29 19:27:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2020-11-29 19:27:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-29 19:27:42,087 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:42,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2020-11-29 19:27:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-11-29 19:27:42,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-11-29 19:27:42,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2020-11-29 19:27:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2020-11-29 19:27:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-29 19:27:43,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:44,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2020-11-29 19:27:44,282 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2020-11-29 19:27:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-29 19:27:44,283 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2020-11-29 19:27:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2020-11-29 19:27:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-29 19:27:45,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2020-11-29 19:27:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2020-11-29 19:27:45,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-29 19:27:45,749 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2020-11-29 19:27:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2020-11-29 19:27:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-29 19:27:46,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2020-11-29 19:27:47,267 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2020-11-29 19:27:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-29 19:27:47,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2020-11-29 19:27:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2020-11-29 19:27:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-29 19:27:47,936 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2020-11-29 19:27:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2020-11-29 19:27:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-11-29 19:27:48,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:49,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2020-11-29 19:27:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2020-11-29 19:27:49,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-11-29 19:27:49,661 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:50,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2020-11-29 19:27:50,528 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-11-29 19:27:50,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-11-29 19:27:50,528 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:50,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:51,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 87 states and 89 transitions. [2020-11-29 19:27:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 89 transitions. [2020-11-29 19:27:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-29 19:27:51,249 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2020-11-29 19:28:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:28:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2020-11-29 19:28:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2020-11-29 19:28:41,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:28:41,650 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2020-11-29 19:28:41,658 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2020-11-29 19:28:42,259 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 9 [2020-11-29 19:28:42,290 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-29 19:28:42,295 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,296 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,302 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-29 19:28:42,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:28:42 ImpRootNode [2020-11-29 19:28:42,304 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:28:42,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:28:42,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:28:42,305 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:28:42,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:09" (3/4) ... [2020-11-29 19:28:42,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:28:42,322 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 19:28:42,322 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 19:28:42,323 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 19:28:42,358 WARN L221 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 [2020-11-29 19:28:42,359 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-29 19:28:42,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a83d089-1164-44ed-b229-bf1d3033238b/bin/ukojak/witness.graphml [2020-11-29 19:28:42,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:28:42,370 INFO L168 Benchmark]: Toolchain (without parser) took 93228.17 ms. Allocated memory was 88.1 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 56.2 MB in the beginning and 959.8 MB in the end (delta: -903.6 MB). Peak memory consumption was 124.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,371 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 45.9 MB in the beginning and 45.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:28:42,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.60 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 66.1 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.32 ms. Allocated memory is still 88.1 MB. Free memory was 66.1 MB in the beginning and 65.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:28:42,373 INFO L168 Benchmark]: Boogie Preprocessor took 23.66 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,374 INFO L168 Benchmark]: RCFGBuilder took 474.94 ms. Allocated memory is still 88.1 MB. Free memory was 64.0 MB in the beginning and 51.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,375 INFO L168 Benchmark]: CodeCheck took 92361.12 ms. Allocated memory was 88.1 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 51.7 MB in the beginning and 961.9 MB in the end (delta: -910.1 MB). Peak memory consumption was 673.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,376 INFO L168 Benchmark]: Witness Printer took 62.90 ms. Allocated memory is still 1.1 GB. Free memory was 961.9 MB in the beginning and 959.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:28:42,381 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: 91.6s, 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, 43.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26424 GetRequests, 22600 SyntacticMatches, 3160 SemanticMatches, 664 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208871 ImplicationChecksByTransitivity, 83.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 12.8s 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 [2020-11-29 19:28:42,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,386 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 [2020-11-29 19:28:42,386 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:28:42,387 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 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 45.9 MB in the beginning and 45.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.60 ms. Allocated memory is still 88.1 MB. Free memory was 55.9 MB in the beginning and 66.1 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.32 ms. Allocated memory is still 88.1 MB. Free memory was 66.1 MB in the beginning and 65.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.66 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 474.94 ms. Allocated memory is still 88.1 MB. Free memory was 64.0 MB in the beginning and 51.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 92361.12 ms. Allocated memory was 88.1 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 51.7 MB in the beginning and 961.9 MB in the end (delta: -910.1 MB). Peak memory consumption was 673.2 MB. Max. memory is 16.1 GB. * Witness Printer took 62.90 ms. Allocated memory is still 1.1 GB. Free memory was 961.9 MB in the beginning and 959.8 MB 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...