./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-sorted-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8be34918f5cf463066a3551693e083428b9e6ee2 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 08:22:33,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 08:22:33,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 08:22:33,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 08:22:33,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 08:22:33,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 08:22:33,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 08:22:33,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 08:22:33,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 08:22:33,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 08:22:33,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 08:22:33,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 08:22:33,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 08:22:33,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 08:22:33,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 08:22:33,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 08:22:33,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 08:22:33,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 08:22:33,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 08:22:33,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 08:22:33,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 08:22:33,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 08:22:33,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 08:22:33,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 08:22:33,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 08:22:33,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 08:22:33,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 08:22:33,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 08:22:33,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 08:22:33,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 08:22:33,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 08:22:33,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 08:22:33,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 08:22:33,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 08:22:33,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 08:22:33,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 08:22:33,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 08:22:33,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 08:22:33,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 08:22:33,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 08:22:33,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 08:22:33,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 08:22:33,562 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 08:22:33,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 08:22:33,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 08:22:33,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 08:22:33,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 08:22:33,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 08:22:33,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 08:22:33,565 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 08:22:33,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 08:22:33,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 08:22:33,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 08:22:33,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 08:22:33,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 08:22:33,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 08:22:33,567 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 08:22:33,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 08:22:33,567 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 08:22:33,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 08:22:33,567 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 08:22:33,568 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 08:22:33,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 08:22:33,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 08:22:33,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 08:22:33,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 08:22:33,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 08:22:33,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 08:22:33,571 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 08:22:33,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 08:22:33,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 08:22:33,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/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 ! call(__VERIFIER_error())) ) 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 -> 8be34918f5cf463066a3551693e083428b9e6ee2 [2019-11-20 08:22:33,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 08:22:33,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 08:22:33,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 08:22:33,738 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 08:22:33,745 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 08:22:33,746 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-sorted-1.i [2019-11-20 08:22:33,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/data/72cce9420/649844cda5154a5790d269df41dc916e/FLAG8d0039a5d [2019-11-20 08:22:34,350 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 08:22:34,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/sv-benchmarks/c/forester-heap/sll-sorted-1.i [2019-11-20 08:22:34,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/data/72cce9420/649844cda5154a5790d269df41dc916e/FLAG8d0039a5d [2019-11-20 08:22:34,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/data/72cce9420/649844cda5154a5790d269df41dc916e [2019-11-20 08:22:34,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 08:22:34,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 08:22:34,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 08:22:34,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 08:22:34,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 08:22:34,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:22:34" (1/1) ... [2019-11-20 08:22:34,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382dd9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:34, skipping insertion in model container [2019-11-20 08:22:34,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:22:34" (1/1) ... [2019-11-20 08:22:34,625 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 08:22:34,680 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 08:22:35,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:22:35,044 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 08:22:35,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 08:22:35,140 INFO L192 MainTranslator]: Completed translation [2019-11-20 08:22:35,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35 WrapperNode [2019-11-20 08:22:35,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 08:22:35,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 08:22:35,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 08:22:35,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 08:22:35,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 08:22:35,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 08:22:35,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 08:22:35,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 08:22:35,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 08:22:35,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 08:22:35,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 08:22:35,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 08:22:35,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:22:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 08:22:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 08:22:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 08:22:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 08:22:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 08:22:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 08:22:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 08:22:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 08:22:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 08:22:35,940 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 08:22:35,940 INFO L285 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-20 08:22:35,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:22:35 BoogieIcfgContainer [2019-11-20 08:22:35,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 08:22:35,942 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 08:22:35,946 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 08:22:35,955 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 08:22:35,955 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:22:35" (1/1) ... [2019-11-20 08:22:35,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 08:22:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:36,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2019-11-20 08:22:36,006 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2019-11-20 08:22:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 08:22:36,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:36,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2019-11-20 08:22:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2019-11-20 08:22:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 08:22:36,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:36,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2019-11-20 08:22:36,224 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2019-11-20 08:22:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 08:22:36,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:22:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2019-11-20 08:22:36,553 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2019-11-20 08:22:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-20 08:22:36,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:22:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2019-11-20 08:22:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2019-11-20 08:22:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 08:22:36,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 58 states and 88 transitions. [2019-11-20 08:22:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 88 transitions. [2019-11-20 08:22:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 08:22:38,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 70 states and 114 transitions. [2019-11-20 08:22:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 114 transitions. [2019-11-20 08:22:40,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 08:22:40,967 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 72 states and 121 transitions. [2019-11-20 08:22:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 121 transitions. [2019-11-20 08:22:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 08:22:41,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 79 states and 137 transitions. [2019-11-20 08:22:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 137 transitions. [2019-11-20 08:22:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 08:22:43,649 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:22:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 79 states and 131 transitions. [2019-11-20 08:22:43,676 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 131 transitions. [2019-11-20 08:22:43,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 08:22:43,678 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:22:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 79 states and 126 transitions. [2019-11-20 08:22:43,705 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 126 transitions. [2019-11-20 08:22:43,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 08:22:43,706 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:47,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 94 states and 159 transitions. [2019-11-20 08:22:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 159 transitions. [2019-11-20 08:22:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:47,777 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 94 states and 154 transitions. [2019-11-20 08:22:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 154 transitions. [2019-11-20 08:22:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:51,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 96 states and 163 transitions. [2019-11-20 08:22:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 163 transitions. [2019-11-20 08:22:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:51,984 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:52,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:52,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:52,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 86 states and 127 transitions. [2019-11-20 08:22:52,605 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 127 transitions. [2019-11-20 08:22:52,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:52,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:55,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 94 states and 147 transitions. [2019-11-20 08:22:55,574 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2019-11-20 08:22:55,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:55,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:58,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 102 states and 164 transitions. [2019-11-20 08:22:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2019-11-20 08:22:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:58,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:22:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:22:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 105 states and 169 transitions. [2019-11-20 08:22:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 169 transitions. [2019-11-20 08:22:59,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:22:59,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:22:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:22:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:00,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 106 states and 169 transitions. [2019-11-20 08:23:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2019-11-20 08:23:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 08:23:00,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 107 states and 169 transitions. [2019-11-20 08:23:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 169 transitions. [2019-11-20 08:23:01,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 08:23:01,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 121 states and 206 transitions. [2019-11-20 08:23:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 206 transitions. [2019-11-20 08:23:08,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 08:23:08,368 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 126 states and 216 transitions. [2019-11-20 08:23:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 216 transitions. [2019-11-20 08:23:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 08:23:09,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:09,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:14,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 136 states and 242 transitions. [2019-11-20 08:23:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 242 transitions. [2019-11-20 08:23:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 08:23:14,467 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:23:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 139 states and 245 transitions. [2019-11-20 08:23:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 245 transitions. [2019-11-20 08:23:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 08:23:16,267 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:19,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 140 states and 245 transitions. [2019-11-20 08:23:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 245 transitions. [2019-11-20 08:23:19,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 08:23:19,531 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:21,322 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 151 states and 274 transitions. [2019-11-20 08:23:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 274 transitions. [2019-11-20 08:23:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 08:23:28,243 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 158 states and 293 transitions. [2019-11-20 08:23:32,154 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 293 transitions. [2019-11-20 08:23:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 08:23:32,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:32,531 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-11-20 08:23:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 160 states and 300 transitions. [2019-11-20 08:23:33,528 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 300 transitions. [2019-11-20 08:23:33,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 08:23:33,528 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:23:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 167 states and 317 transitions. [2019-11-20 08:23:38,092 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 317 transitions. [2019-11-20 08:23:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:23:38,093 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:41,174 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-11-20 08:23:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 174 states and 342 transitions. [2019-11-20 08:23:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 342 transitions. [2019-11-20 08:23:49,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:23:49,379 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 176 states and 346 transitions. [2019-11-20 08:23:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 346 transitions. [2019-11-20 08:23:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:23:50,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 08:23:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 171 states and 341 transitions. [2019-11-20 08:23:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 341 transitions. [2019-11-20 08:23:51,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:23:51,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:51,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:23:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:23:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 177 states and 360 transitions. [2019-11-20 08:23:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 360 transitions. [2019-11-20 08:23:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:23:56,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:23:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:23:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:02,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 183 states and 379 transitions. [2019-11-20 08:24:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 379 transitions. [2019-11-20 08:24:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:02,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 188 states and 391 transitions. [2019-11-20 08:24:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 391 transitions. [2019-11-20 08:24:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:06,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 199 states and 423 transitions. [2019-11-20 08:24:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 423 transitions. [2019-11-20 08:24:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:20,977 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:21,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 204 states and 434 transitions. [2019-11-20 08:24:24,025 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 434 transitions. [2019-11-20 08:24:24,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:24,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:24,770 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-11-20 08:24:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 206 states and 442 transitions. [2019-11-20 08:24:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 442 transitions. [2019-11-20 08:24:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:26,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 213 states and 462 transitions. [2019-11-20 08:24:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 462 transitions. [2019-11-20 08:24:32,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 08:24:32,098 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 215 states and 469 transitions. [2019-11-20 08:24:35,094 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 469 transitions. [2019-11-20 08:24:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:24:35,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 08:24:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 219 states and 481 transitions. [2019-11-20 08:24:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 481 transitions. [2019-11-20 08:24:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:24:36,798 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:24:42,468 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-11-20 08:24:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:24:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 221 states and 485 transitions. [2019-11-20 08:24:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 485 transitions. [2019-11-20 08:24:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:24:47,741 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:24:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:24:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:01,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 231 states and 512 transitions. [2019-11-20 08:25:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 512 transitions. [2019-11-20 08:25:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:25:01,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:02,286 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 235 states and 526 transitions. [2019-11-20 08:25:05,728 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 526 transitions. [2019-11-20 08:25:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:25:05,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 237 states and 534 transitions. [2019-11-20 08:25:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 534 transitions. [2019-11-20 08:25:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:25:07,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:08,596 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-11-20 08:25:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 235 states and 524 transitions. [2019-11-20 08:25:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 524 transitions. [2019-11-20 08:25:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:25:09,965 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 08:25:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 241 states and 540 transitions. [2019-11-20 08:25:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 540 transitions. [2019-11-20 08:25:17,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 08:25:17,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:31,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 250 states and 562 transitions. [2019-11-20 08:25:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 562 transitions. [2019-11-20 08:25:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:25:31,556 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:25:46,581 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-11-20 08:25:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:25:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 263 states and 606 transitions. [2019-11-20 08:25:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 606 transitions. [2019-11-20 08:25:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:25:52,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:25:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:25:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:01,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 270 states and 622 transitions. [2019-11-20 08:26:01,244 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 622 transitions. [2019-11-20 08:26:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:01,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 274 states and 635 transitions. [2019-11-20 08:26:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 635 transitions. [2019-11-20 08:26:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:13,976 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:16,294 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-20 08:26:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 236 states and 551 transitions. [2019-11-20 08:26:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 551 transitions. [2019-11-20 08:26:27,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:27,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:37,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 244 states and 568 transitions. [2019-11-20 08:26:37,908 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 568 transitions. [2019-11-20 08:26:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:37,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:44,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 250 states and 577 transitions. [2019-11-20 08:26:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 577 transitions. [2019-11-20 08:26:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:44,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:26:47,004 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-11-20 08:26:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:26:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 252 states and 579 transitions. [2019-11-20 08:26:49,457 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 579 transitions. [2019-11-20 08:26:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:26:49,457 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:26:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:26:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:02,036 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-11-20 08:27:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:03,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 261 states and 596 transitions. [2019-11-20 08:27:03,292 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 596 transitions. [2019-11-20 08:27:03,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:27:03,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 263 states and 616 transitions. [2019-11-20 08:27:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 616 transitions. [2019-11-20 08:27:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 08:27:07,358 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 264 states and 617 transitions. [2019-11-20 08:27:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 617 transitions. [2019-11-20 08:27:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 08:27:09,157 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:12,284 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:25,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 272 states and 645 transitions. [2019-11-20 08:27:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 645 transitions. [2019-11-20 08:27:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 08:27:25,689 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-20 08:27:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 277 states and 659 transitions. [2019-11-20 08:27:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 659 transitions. [2019-11-20 08:27:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 08:27:29,997 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 08:27:31,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 277 states and 655 transitions. [2019-11-20 08:27:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 655 transitions. [2019-11-20 08:27:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 08:27:31,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:34,100 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-11-20 08:27:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:39,835 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-11-20 08:27:41,193 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-11-20 08:27:43,620 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-11-20 08:27:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:27:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 287 states and 691 transitions. [2019-11-20 08:27:57,486 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 691 transitions. [2019-11-20 08:27:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 08:27:57,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:27:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:27:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:27:58,779 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-11-20 08:27:59,226 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2019-11-20 08:28:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 290 states and 701 transitions. [2019-11-20 08:28:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 701 transitions. [2019-11-20 08:28:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:02,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:28:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 292 states and 707 transitions. [2019-11-20 08:28:12,695 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 707 transitions. [2019-11-20 08:28:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:12,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:28:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 302 states and 728 transitions. [2019-11-20 08:28:27,664 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 728 transitions. [2019-11-20 08:28:27,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:27,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:27,701 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:28:28,213 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-11-20 08:28:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 310 states and 754 transitions. [2019-11-20 08:28:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 754 transitions. [2019-11-20 08:28:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:34,561 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:35,601 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2019-11-20 08:28:36,585 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 44 [2019-11-20 08:28:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:28:40,243 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-11-20 08:28:41,420 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-11-20 08:28:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:44,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 312 states and 759 transitions. [2019-11-20 08:28:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 759 transitions. [2019-11-20 08:28:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:44,238 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 08:28:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:28:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 318 states and 769 transitions. [2019-11-20 08:28:51,454 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 769 transitions. [2019-11-20 08:28:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:28:51,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:28:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:28:53,434 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-11-20 08:28:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:29:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:29:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 331 states and 815 transitions. [2019-11-20 08:29:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 815 transitions. [2019-11-20 08:29:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:29:32,612 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:29:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:29:39,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:30:04,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 346 states and 853 transitions. [2019-11-20 08:30:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 853 transitions. [2019-11-20 08:30:04,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:30:04,582 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:04,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:30:05,275 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2019-11-20 08:30:05,801 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2019-11-20 08:30:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 348 states and 856 transitions. [2019-11-20 08:30:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 856 transitions. [2019-11-20 08:30:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:30:08,043 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:30:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 352 states and 888 transitions. [2019-11-20 08:30:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 888 transitions. [2019-11-20 08:30:18,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:30:18,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:30:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 360 states and 908 transitions. [2019-11-20 08:30:32,115 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 908 transitions. [2019-11-20 08:30:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 08:30:32,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:30:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 362 states and 916 transitions. [2019-11-20 08:30:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 916 transitions. [2019-11-20 08:30:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:30:38,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:38,291 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-20 08:30:42,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:30:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 366 states and 928 transitions. [2019-11-20 08:30:42,232 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 928 transitions. [2019-11-20 08:30:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:30:42,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:30:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:30:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:31:11,273 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-11-20 08:31:13,769 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-11-20 08:31:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:31:15,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 378 states and 974 transitions. [2019-11-20 08:31:15,626 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 974 transitions. [2019-11-20 08:31:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:31:15,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:31:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:31:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:31:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:31:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 385 states and 996 transitions. [2019-11-20 08:31:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 996 transitions. [2019-11-20 08:31:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:31:26,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:31:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:31:35,018 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:31:36,568 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-11-20 08:31:38,255 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-11-20 08:31:41,512 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2019-11-20 08:31:43,359 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2019-11-20 08:32:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:32:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 395 states and 1045 transitions. [2019-11-20 08:32:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 1045 transitions. [2019-11-20 08:32:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:32:02,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:32:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:32:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:32:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:32:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 397 states and 1049 transitions. [2019-11-20 08:32:04,627 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1049 transitions. [2019-11-20 08:32:04,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:32:04,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:32:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:32:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:32:09,106 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-11-20 08:32:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:32:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 399 states and 1053 transitions. [2019-11-20 08:32:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 1053 transitions. [2019-11-20 08:32:11,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:32:11,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:32:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:32:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:32:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:32:17,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 405 states and 1068 transitions. [2019-11-20 08:32:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1068 transitions. [2019-11-20 08:32:17,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:32:17,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:32:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 08:32:17,734 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 08:32:18,631 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2019-11-20 08:32:19,533 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-11-20 08:32:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 08:32:23,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 407 states and 1075 transitions. [2019-11-20 08:32:23,404 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 1075 transitions. [2019-11-20 08:32:23,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 08:32:23,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 08:32:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:32:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:32:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:32:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 08:32:23,676 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 82 iterations. [2019-11-20 08:32:23,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 08:32:23 ImpRootNode [2019-11-20 08:32:23,734 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 08:32:23,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 08:32:23,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 08:32:23,735 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 08:32:23,736 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:22:35" (3/4) ... [2019-11-20 08:32:23,738 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 08:32:23,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2db0382-5782-41f7-94d1-4c95f1ebdf8b/bin/ukojak/witness.graphml [2019-11-20 08:32:23,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 08:32:23,818 INFO L168 Benchmark]: Toolchain (without parser) took 589207.71 ms. Allocated memory was 1.0 GB in the beginning and 3.2 GB in the end (delta: 2.2 GB). Free memory was 939.4 MB in the beginning and 2.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 528.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,819 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:32:23,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,820 INFO L168 Benchmark]: Boogie Preprocessor took 35.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 08:32:23,821 INFO L168 Benchmark]: RCFGBuilder took 707.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,821 INFO L168 Benchmark]: CodeCheck took 587792.50 ms. Allocated memory was 1.2 GB in the beginning and 3.2 GB in the end (delta: 2.0 GB). Free memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 497.2 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,822 INFO L168 Benchmark]: Witness Printer took 82.17 ms. Allocated memory is still 3.2 GB. Free memory was 2.6 GB in the beginning and 2.6 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-11-20 08:32:23,825 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 44 locations, 6 error locations. Result: UNSAFE, OverallTime: 587.6s, OverallIterations: 82, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16384 SDtfs, 359061882 SDslu, -167414848 SDs, 0 SdLazy, -1701948212 SolverSat, -1250097586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 341.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21608 GetRequests, 19247 SyntacticMatches, 873 SemanticMatches, 1488 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1270972 ImplicationChecksByTransitivity, 570.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 92.2s InterpolantComputationTime, 1888 NumberOfCodeBlocks, 1888 NumberOfCodeBlocksAsserted, 82 NumberOfCheckSat, 1779 ConstructedInterpolants, 0 QuantifiedInterpolants, 1614347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 81 InterpolantComputations, 14 PerfectInterpolantSequences, 100/945 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 - CounterExampleResult [Line: 1051]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); [L986] head->next = ((void*)0) [L987] head->data = 0 [L989] SLL* x = head; [L990] int marked = 0; [L993] COND TRUE __VERIFIER_nondet_int() || !marked [L996] x->next = malloc(sizeof(SLL)) [L997] EXPR x->next [L997] x = x->next [L998] x->next = ((void*)0) [L1000] COND TRUE __VERIFIER_nondet_int() [L1002] marked = 1 [L1005] COND TRUE \read(marked) [L1006] x->data = 1 [L993] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1014] marked = 0 [L1016] EXPR x->next [L1016] x->next != ((void*)0) && x->next->data == 0 [L1016] EXPR x->next [L1016] EXPR x->next->data [L1016] x->next != ((void*)0) && x->next->data == 0 [L1016] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1021] EXPR x->next [L1021] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1021] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1021] COND FALSE !(x->next != ((void*)0) && __VERIFIER_nondet_int()) [L1027] SLL* tmp = malloc(sizeof(SLL)); [L1028] tmp->data = 1 [L1029] tmp->next = ((void*)0) [L1030] EXPR x->next [L1030] COND FALSE !(x->next == ((void*)0)) [L1034] EXPR x->next [L1034] tmp->next = x->next [L1035] x->next = tmp [L1038] marked = 0 [L1039] x = head [L1041] x != ((void*)0) && x->data != 1 [L1041] EXPR x->data [L1041] x != ((void*)0) && x->data != 1 [L1041] COND TRUE x != ((void*)0) && x->data != 1 [L1043] EXPR x->data [L1043] marked = x->data [L1044] EXPR x->data [L1044] COND FALSE !(!(x->data == 0)) [L1045] COND FALSE !(!(marked == 0)) [L1046] EXPR x->next [L1046] x = x->next [L1041] x != ((void*)0) && x->data != 1 [L1041] EXPR x->data [L1041] x != ((void*)0) && x->data != 1 [L1041] COND FALSE !(x != ((void*)0) && x->data != 1) [L1048] COND TRUE x != ((void*)0) [L1050] EXPR x->data [L1050] marked = x->data [L1051] EXPR x->data [L1051] COND TRUE !(x->data != 1) [L1051] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 529.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 707.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * CodeCheck took 587792.50 ms. Allocated memory was 1.2 GB in the beginning and 3.2 GB in the end (delta: 2.0 GB). Free memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 497.2 MB. Max. memory is 11.5 GB. * Witness Printer took 82.17 ms. Allocated memory is still 3.2 GB. Free memory was 2.6 GB in the beginning and 2.6 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...