./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da856cb29218eae000c82400da3ef1c667e9f55c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:14:02,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:14:02,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:14:02,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:14:02,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:14:02,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:14:02,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:14:02,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:14:02,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:14:02,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:14:02,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:14:02,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:14:02,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:14:02,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:14:02,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:14:02,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:14:02,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:14:02,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:14:02,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:14:02,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:14:02,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:14:02,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:14:02,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:14:02,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:14:02,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:14:02,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:14:02,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:14:02,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:14:02,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:14:02,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:14:02,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:14:02,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:14:02,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:14:02,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:14:02,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:14:02,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:14:02,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:14:02,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:14:02,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:14:02,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:14:02,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:14:02,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-11-30 00:14:02,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:14:02,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:14:02,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:14:02,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:14:02,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:14:02,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:14:02,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:14:02,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:14:02,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:14:02,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:14:02,268 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:14:02,269 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:14:02,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:14:02,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:14:02,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:14:02,270 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:14:02,270 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:14:02,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:14:02,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:14:02,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:14:02,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:14:02,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:14:02,271 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:14:02,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:14:02,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da856cb29218eae000c82400da3ef1c667e9f55c [2020-11-30 00:14:02,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:14:02,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:14:02,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:14:02,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:14:02,623 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:14:02,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2020-11-30 00:14:02,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/data/6a5e1eb20/85931eab49e44e7a9cf77a0d69a439fe/FLAGf1a6ee7e6 [2020-11-30 00:14:03,209 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:14:03,209 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/sv-benchmarks/c/list-properties/alternating_list-2.i [2020-11-30 00:14:03,242 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/data/6a5e1eb20/85931eab49e44e7a9cf77a0d69a439fe/FLAGf1a6ee7e6 [2020-11-30 00:14:03,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/data/6a5e1eb20/85931eab49e44e7a9cf77a0d69a439fe [2020-11-30 00:14:03,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:14:03,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:14:03,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:03,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:14:03,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:14:03,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:03" (1/1) ... [2020-11-30 00:14:03,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2d269f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:03, skipping insertion in model container [2020-11-30 00:14:03,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:14:03" (1/1) ... [2020-11-30 00:14:03,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:14:03,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:14:04,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:04,136 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:14:04,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:14:04,279 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:14:04,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04 WrapperNode [2020-11-30 00:14:04,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:14:04,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:04,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:14:04,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:14:04,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:14:04,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:14:04,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:14:04,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:14:04,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... [2020-11-30 00:14:04,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:14:04,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:14:04,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:14:04,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:14:04,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:14:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:14:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:14:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:14:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:14:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:14:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:14:05,061 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:14:05,061 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-30 00:14:05,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:05 BoogieIcfgContainer [2020-11-30 00:14:05,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:14:05,064 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:14:05,064 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:14:05,072 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:14:05,072 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:05" (1/1) ... [2020-11-30 00:14:05,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:14:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 68 states and 80 transitions. [2020-11-30 00:14:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2020-11-30 00:14:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:14:05,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:05,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 68 states and 79 transitions. [2020-11-30 00:14:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2020-11-30 00:14:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:14:05,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 71 states and 84 transitions. [2020-11-30 00:14:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2020-11-30 00:14:05,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:14:05,494 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 74 states and 89 transitions. [2020-11-30 00:14:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2020-11-30 00:14:05,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:14:05,923 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 78 states and 96 transitions. [2020-11-30 00:14:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2020-11-30 00:14:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:14:06,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 82 states and 104 transitions. [2020-11-30 00:14:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2020-11-30 00:14:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:14:06,474 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:06,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 84 states and 107 transitions. [2020-11-30 00:14:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2020-11-30 00:14:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:14:06,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 86 states and 110 transitions. [2020-11-30 00:14:06,603 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2020-11-30 00:14:06,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:14:06,604 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:07,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 89 states and 117 transitions. [2020-11-30 00:14:07,270 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2020-11-30 00:14:07,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:07,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 93 states and 124 transitions. [2020-11-30 00:14:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2020-11-30 00:14:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:07,385 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 97 states and 132 transitions. [2020-11-30 00:14:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2020-11-30 00:14:07,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:07,486 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 100 states and 140 transitions. [2020-11-30 00:14:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2020-11-30 00:14:07,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:07,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:07,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 102 states and 145 transitions. [2020-11-30 00:14:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-11-30 00:14:07,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:07,870 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 105 states and 153 transitions. [2020-11-30 00:14:08,612 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 153 transitions. [2020-11-30 00:14:08,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:08,612 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 104 states and 152 transitions. [2020-11-30 00:14:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 152 transitions. [2020-11-30 00:14:08,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:14:08,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:08,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:09,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 107 states and 158 transitions. [2020-11-30 00:14:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 158 transitions. [2020-11-30 00:14:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:14:09,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:09,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 108 states and 165 transitions. [2020-11-30 00:14:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 165 transitions. [2020-11-30 00:14:09,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:14:09,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 108 states and 164 transitions. [2020-11-30 00:14:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 164 transitions. [2020-11-30 00:14:09,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:14:09,538 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 110 states and 167 transitions. [2020-11-30 00:14:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 167 transitions. [2020-11-30 00:14:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:14:09,572 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 111 states and 169 transitions. [2020-11-30 00:14:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 169 transitions. [2020-11-30 00:14:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:14:09,815 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 113 states and 172 transitions. [2020-11-30 00:14:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2020-11-30 00:14:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:14:10,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 114 states and 174 transitions. [2020-11-30 00:14:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 174 transitions. [2020-11-30 00:14:10,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:14:10,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:10,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 119 states and 190 transitions. [2020-11-30 00:14:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 190 transitions. [2020-11-30 00:14:10,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:14:10,547 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 129 states and 213 transitions. [2020-11-30 00:14:11,921 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 213 transitions. [2020-11-30 00:14:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:14:11,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:12,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 130 states and 214 transitions. [2020-11-30 00:14:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 214 transitions. [2020-11-30 00:14:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:14:12,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:13,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 135 states and 226 transitions. [2020-11-30 00:14:13,794 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 226 transitions. [2020-11-30 00:14:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:14:13,795 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 134 states and 225 transitions. [2020-11-30 00:14:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 225 transitions. [2020-11-30 00:14:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:14:14,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 137 states and 228 transitions. [2020-11-30 00:14:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 228 transitions. [2020-11-30 00:14:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:14:15,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:16,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 137 states and 227 transitions. [2020-11-30 00:14:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 227 transitions. [2020-11-30 00:14:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:14:16,205 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 137 states and 226 transitions. [2020-11-30 00:14:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 226 transitions. [2020-11-30 00:14:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:17,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:22,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 149 states and 250 transitions. [2020-11-30 00:14:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 250 transitions. [2020-11-30 00:14:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:22,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 152 states and 258 transitions. [2020-11-30 00:14:24,262 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 258 transitions. [2020-11-30 00:14:24,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:24,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 130 states and 216 transitions. [2020-11-30 00:14:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 216 transitions. [2020-11-30 00:14:24,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:24,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:24,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 129 states and 215 transitions. [2020-11-30 00:14:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 215 transitions. [2020-11-30 00:14:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:24,591 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:24,617 ERROR L253 erpolLogProxyWrapper]: Interpolant 6 not inductive [2020-11-30 00:14:24,621 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-30 00:14:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:24,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:14:24,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:14:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 139 states and 238 transitions. [2020-11-30 00:14:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 238 transitions. [2020-11-30 00:14:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:14:28,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:29,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 140 states and 239 transitions. [2020-11-30 00:14:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 239 transitions. [2020-11-30 00:14:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:14:29,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:33,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 145 states and 250 transitions. [2020-11-30 00:14:33,596 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 250 transitions. [2020-11-30 00:14:33,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:33,597 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 146 states and 252 transitions. [2020-11-30 00:14:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 252 transitions. [2020-11-30 00:14:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:34,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:34,305 ERROR L253 erpolLogProxyWrapper]: Interpolant 6 not inductive [2020-11-30 00:14:34,310 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-30 00:14:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:34,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-30 00:14:34,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:14:34,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 150 states and 267 transitions. [2020-11-30 00:14:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 267 transitions. [2020-11-30 00:14:35,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:35,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 153 states and 281 transitions. [2020-11-30 00:14:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 281 transitions. [2020-11-30 00:14:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:37,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:14:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 153 states and 280 transitions. [2020-11-30 00:14:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 280 transitions. [2020-11-30 00:14:37,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:37,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:14:38,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 154 states and 282 transitions. [2020-11-30 00:14:38,834 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 282 transitions. [2020-11-30 00:14:38,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:38,835 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:14:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 155 states and 286 transitions. [2020-11-30 00:14:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 286 transitions. [2020-11-30 00:14:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:39,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:14:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 157 states and 294 transitions. [2020-11-30 00:14:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 294 transitions. [2020-11-30 00:14:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:14:40,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:40,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 158 states and 297 transitions. [2020-11-30 00:14:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 297 transitions. [2020-11-30 00:14:41,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:14:41,243 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:41,275 ERROR L253 erpolLogProxyWrapper]: Interpolant 6 not inductive [2020-11-30 00:14:41,284 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-30 00:14:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:41,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:14:41,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:14:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 163 states and 325 transitions. [2020-11-30 00:14:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 325 transitions. [2020-11-30 00:14:44,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:14:44,717 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:44,739 ERROR L253 erpolLogProxyWrapper]: Interpolant 6 not inductive [2020-11-30 00:14:44,744 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-30 00:14:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:44,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:14:44,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:14:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 165 states and 333 transitions. [2020-11-30 00:14:46,215 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 333 transitions. [2020-11-30 00:14:46,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:14:46,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:52,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 174 states and 360 transitions. [2020-11-30 00:14:52,757 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 360 transitions. [2020-11-30 00:14:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:14:52,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:52,778 ERROR L253 erpolLogProxyWrapper]: Interpolant 6 not inductive [2020-11-30 00:14:52,783 ERROR L603 CodeCheckObserver]: First Tracecheck threw exception generated interpolants did not pass sanity check [2020-11-30 00:14:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:52,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:14:52,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:14:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:14:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 175 states and 360 transitions. [2020-11-30 00:14:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 360 transitions. [2020-11-30 00:14:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:14:53,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:53,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:14:56,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:14:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 181 states and 369 transitions. [2020-11-30 00:14:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 369 transitions. [2020-11-30 00:14:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:14:56,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:14:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:14:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 189 states and 389 transitions. [2020-11-30 00:15:01,438 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 389 transitions. [2020-11-30 00:15:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:01,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:15:02,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 191 states and 392 transitions. [2020-11-30 00:15:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 392 transitions. [2020-11-30 00:15:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:02,189 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:15:04,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:04,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 196 states and 406 transitions. [2020-11-30 00:15:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 406 transitions. [2020-11-30 00:15:04,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:04,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:04,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:05,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 198 states and 409 transitions. [2020-11-30 00:15:05,430 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 409 transitions. [2020-11-30 00:15:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:05,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:15:06,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 199 states and 412 transitions. [2020-11-30 00:15:06,437 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 412 transitions. [2020-11-30 00:15:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:06,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 202 states and 420 transitions. [2020-11-30 00:15:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 420 transitions. [2020-11-30 00:15:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:09,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:09,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:11,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 204 states and 428 transitions. [2020-11-30 00:15:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 428 transitions. [2020-11-30 00:15:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 00:15:11,650 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 205 states and 432 transitions. [2020-11-30 00:15:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 432 transitions. [2020-11-30 00:15:12,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:15:12,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:15:12,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:15:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:15:12,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:15:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:15:13,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:15:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:15:13,054 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:15:13,074 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 58 iterations. [2020-11-30 00:15:13,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:15:13 ImpRootNode [2020-11-30 00:15:13,163 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:15:13,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:15:13,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:15:13,164 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:15:13,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:14:05" (3/4) ... [2020-11-30 00:15:13,167 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:15:13,264 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eec1502d-06bc-4877-815f-aae306f40b23/bin/ukojak/witness.graphml [2020-11-30 00:15:13,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:15:13,269 INFO L168 Benchmark]: Toolchain (without parser) took 69747.64 ms. Allocated memory was 71.3 MB in the beginning and 960.5 MB in the end (delta: 889.2 MB). Free memory was 38.4 MB in the beginning and 763.2 MB in the end (delta: -724.8 MB). Peak memory consumption was 163.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,270 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:15:13,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.54 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.1 MB in the beginning and 49.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.31 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,278 INFO L168 Benchmark]: Boogie Preprocessor took 34.15 ms. Allocated memory is still 86.0 MB. Free memory was 47.2 MB in the beginning and 45.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,279 INFO L168 Benchmark]: RCFGBuilder took 698.74 ms. Allocated memory is still 86.0 MB. Free memory was 45.9 MB in the beginning and 44.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,279 INFO L168 Benchmark]: CodeCheck took 68099.65 ms. Allocated memory was 86.0 MB in the beginning and 960.5 MB in the end (delta: 874.5 MB). Free memory was 44.8 MB in the beginning and 765.3 MB in the end (delta: -720.5 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,280 INFO L168 Benchmark]: Witness Printer took 103.62 ms. Allocated memory is still 960.5 MB. Free memory was 765.3 MB in the beginning and 763.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:13,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 68 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 67.9s, OverallIterations: 58, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16384 SDtfs, 164778824 SDslu, -992730064 SDs, 0 SdLazy, -1239389912 SolverSat, -1332562256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7855 GetRequests, 7085 SyntacticMatches, 242 SemanticMatches, 528 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138881 ImplicationChecksByTransitivity, 63.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 704 ConstructedInterpolants, 0 QuantifiedInterpolants, 61217 SizeOfPredicates, 30 NumberOfNonLiveVariables, 576 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 57 InterpolantComputations, 42 PerfectInterpolantSequences, 33/63 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List p = a; [L537] COND TRUE __VERIFIER_nondet_int() [L538] COND TRUE \read(flag) [L539] p->h = 2 [L540] flag = 0 [L545] t = (List) malloc(sizeof(struct node)) [L546] COND FALSE !(t == 0) [L547] p->n = t [L548] EXPR p->n [L548] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] flag = 1 [L553] EXPR p->h [L553] COND TRUE p->h != 3 [L554] COND TRUE \read(flag) [L555] flag = 0 [L556] EXPR p->h [L556] COND TRUE p->h != 1 [L12] COND FALSE !(0) [L12] __assert_fail ("0", "alternating_list-2.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 71.3 MB. Free memory was 50.9 MB in the beginning and 50.9 MB in the end (delta: 24.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 746.54 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.1 MB in the beginning and 49.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.31 ms. Allocated memory is still 86.0 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.15 ms. Allocated memory is still 86.0 MB. Free memory was 47.2 MB in the beginning and 45.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 698.74 ms. Allocated memory is still 86.0 MB. Free memory was 45.9 MB in the beginning and 44.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 68099.65 ms. Allocated memory was 86.0 MB in the beginning and 960.5 MB in the end (delta: 874.5 MB). Free memory was 44.8 MB in the beginning and 765.3 MB in the end (delta: -720.5 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.1 GB. * Witness Printer took 103.62 ms. Allocated memory is still 960.5 MB. Free memory was 765.3 MB in the beginning and 763.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...