./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44834c55142a76240cb3980fc2bb6f5aeaa27c83 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:13,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:13,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:13,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:13,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:13,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:13,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:13,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:13,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:13,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:13,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:13,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:13,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:13,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:13,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:13,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:13,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:13,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:13,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:13,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:13,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:13,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:13,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:13,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:13,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:13,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:13,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:13,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:13,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:13,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:13,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:13,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:13,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:13,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:13,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:13,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:13,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:13,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:13,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:13,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:13,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:13,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:32:13,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:13,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:13,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:13,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:13,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:13,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:13,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:32:13,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:13,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:13,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:13,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:32:13,611 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:32:13,611 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:32:13,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:13,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:13,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:13,612 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:13,612 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:13,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:13,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:13,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:13,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:13,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:13,613 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:13,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:13,614 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_0516fa11-c417-4920-998b-96e3c884b6a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44834c55142a76240cb3980fc2bb6f5aeaa27c83 [2020-11-28 04:32:13,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:13,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:13,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:13,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:13,958 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:13,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2020-11-28 04:32:14,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/data/f0dda5b8e/5b81325bc16b460883eee2abe795d4a4/FLAG7cdf96b9f [2020-11-28 04:32:14,558 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:14,558 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2020-11-28 04:32:14,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/data/f0dda5b8e/5b81325bc16b460883eee2abe795d4a4/FLAG7cdf96b9f [2020-11-28 04:32:14,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/data/f0dda5b8e/5b81325bc16b460883eee2abe795d4a4 [2020-11-28 04:32:14,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:14,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:14,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:14,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:14,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:14,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:14" (1/1) ... [2020-11-28 04:32:14,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3656fba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:14, skipping insertion in model container [2020-11-28 04:32:14,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:14" (1/1) ... [2020-11-28 04:32:14,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:14,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:15,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:15,188 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:15,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:15,226 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:15,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15 WrapperNode [2020-11-28 04:32:15,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:15,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:15,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:15,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:15,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:15,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:15,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:15,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:15,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:15,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:15,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:15,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:15,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/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 [2020-11-28 04:32:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:32:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:32:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:32:15,866 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:15,866 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:32:15,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:15 BoogieIcfgContainer [2020-11-28 04:32:15,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:15,870 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:15,870 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:15,884 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:15,884 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:15" (1/1) ... [2020-11-28 04:32:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-28 04:32:15,955 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-28 04:32:15,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:15,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-11-28 04:32:16,189 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-28 04:32:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:16,190 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:16,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:16,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:16,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-11-28 04:32:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-28 04:32:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:16,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:16,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-11-28 04:32:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-11-28 04:32:16,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:16,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2020-11-28 04:32:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2020-11-28 04:32:16,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:16,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2020-11-28 04:32:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-28 04:32:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:17,666 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:17,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:17,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2020-11-28 04:32:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-11-28 04:32:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:17,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2020-11-28 04:32:18,091 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2020-11-28 04:32:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:18,092 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:18,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2020-11-28 04:32:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2020-11-28 04:32:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:32:18,362 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:18,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2020-11-28 04:32:18,636 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2020-11-28 04:32:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:18,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 36 states and 61 transitions. [2020-11-28 04:32:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2020-11-28 04:32:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:19,670 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2020-11-28 04:32:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-11-28 04:32:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:20,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:32:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 39 states and 64 transitions. [2020-11-28 04:32:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-11-28 04:32:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:20,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:20,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 41 states and 71 transitions. [2020-11-28 04:32:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2020-11-28 04:32:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:20,567 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 72 transitions. [2020-11-28 04:32:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2020-11-28 04:32:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:20,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 43 states and 73 transitions. [2020-11-28 04:32:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 73 transitions. [2020-11-28 04:32:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:20,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:32:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 44 states and 73 transitions. [2020-11-28 04:32:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2020-11-28 04:32:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:21,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:32:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 44 states and 72 transitions. [2020-11-28 04:32:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 72 transitions. [2020-11-28 04:32:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:32:21,263 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 46 states and 78 transitions. [2020-11-28 04:32:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 78 transitions. [2020-11-28 04:32:21,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:21,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:32:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 47 states and 83 transitions. [2020-11-28 04:32:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 83 transitions. [2020-11-28 04:32:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:21,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:22,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 100 transitions. [2020-11-28 04:32:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 100 transitions. [2020-11-28 04:32:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:22,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 53 states and 111 transitions. [2020-11-28 04:32:23,594 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 111 transitions. [2020-11-28 04:32:23,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:23,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:32:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 54 states and 111 transitions. [2020-11-28 04:32:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 111 transitions. [2020-11-28 04:32:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:23,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:23,857 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:32:23,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 54 states and 110 transitions. [2020-11-28 04:32:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 110 transitions. [2020-11-28 04:32:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:23,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 56 states and 111 transitions. [2020-11-28 04:32:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 111 transitions. [2020-11-28 04:32:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:24,373 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:24,402 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 58 states and 111 transitions. [2020-11-28 04:32:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 111 transitions. [2020-11-28 04:32:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:24,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 59 states and 113 transitions. [2020-11-28 04:32:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 113 transitions. [2020-11-28 04:32:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:25,137 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:32:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 60 states and 112 transitions. [2020-11-28 04:32:25,438 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 112 transitions. [2020-11-28 04:32:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:25,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-28 04:32:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 61 states and 112 transitions. [2020-11-28 04:32:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 112 transitions. [2020-11-28 04:32:25,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:32:25,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 62 states and 112 transitions. [2020-11-28 04:32:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 112 transitions. [2020-11-28 04:32:25,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:32:25,748 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:26,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 64 states and 121 transitions. [2020-11-28 04:32:26,126 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 121 transitions. [2020-11-28 04:32:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:26,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-28 04:32:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:26,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 64 states and 119 transitions. [2020-11-28 04:32:26,447 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 119 transitions. [2020-11-28 04:32:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:26,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:26,557 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 66 states and 130 transitions. [2020-11-28 04:32:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 130 transitions. [2020-11-28 04:32:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:26,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 70 states and 153 transitions. [2020-11-28 04:32:28,318 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 153 transitions. [2020-11-28 04:32:28,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:28,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:28,330 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-28 04:32:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:28,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 70 states and 152 transitions. [2020-11-28 04:32:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 152 transitions. [2020-11-28 04:32:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:28,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-28 04:32:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 71 states and 151 transitions. [2020-11-28 04:32:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 151 transitions. [2020-11-28 04:32:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:28,937 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 151 transitions. [2020-11-28 04:32:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 151 transitions. [2020-11-28 04:32:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:29,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 73 states and 151 transitions. [2020-11-28 04:32:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 151 transitions. [2020-11-28 04:32:29,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:29,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 74 states and 151 transitions. [2020-11-28 04:32:30,158 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 151 transitions. [2020-11-28 04:32:30,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:30,158 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 75 states and 151 transitions. [2020-11-28 04:32:30,547 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 151 transitions. [2020-11-28 04:32:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:30,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 76 states and 151 transitions. [2020-11-28 04:32:30,634 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 151 transitions. [2020-11-28 04:32:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:30,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 77 states and 151 transitions. [2020-11-28 04:32:30,717 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 151 transitions. [2020-11-28 04:32:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:30,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 78 states and 151 transitions. [2020-11-28 04:32:30,841 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 151 transitions. [2020-11-28 04:32:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:32:30,842 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 79 states and 151 transitions. [2020-11-28 04:32:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 151 transitions. [2020-11-28 04:32:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:32:30,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:30,950 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 81 states and 162 transitions. [2020-11-28 04:32:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 162 transitions. [2020-11-28 04:32:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:31,296 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 04:32:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 81 states and 160 transitions. [2020-11-28 04:32:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 160 transitions. [2020-11-28 04:32:31,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:31,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:33,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 85 states and 185 transitions. [2020-11-28 04:32:33,368 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 185 transitions. [2020-11-28 04:32:33,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:33,368 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 87 states and 185 transitions. [2020-11-28 04:32:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 185 transitions. [2020-11-28 04:32:33,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:33,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 88 states and 185 transitions. [2020-11-28 04:32:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 185 transitions. [2020-11-28 04:32:34,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:34,383 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 90 states and 199 transitions. [2020-11-28 04:32:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 199 transitions. [2020-11-28 04:32:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:34,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 04:32:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:35,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 91 states and 199 transitions. [2020-11-28 04:32:35,019 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 199 transitions. [2020-11-28 04:32:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:35,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 92 states and 199 transitions. [2020-11-28 04:32:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 199 transitions. [2020-11-28 04:32:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:35,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 93 states and 200 transitions. [2020-11-28 04:32:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 200 transitions. [2020-11-28 04:32:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:35,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:35,753 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 94 states and 200 transitions. [2020-11-28 04:32:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 200 transitions. [2020-11-28 04:32:35,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:35,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:36,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:36,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 95 states and 200 transitions. [2020-11-28 04:32:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 200 transitions. [2020-11-28 04:32:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:36,219 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 96 states and 200 transitions. [2020-11-28 04:32:36,656 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 200 transitions. [2020-11-28 04:32:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:36,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:36,678 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 97 states and 200 transitions. [2020-11-28 04:32:36,748 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 200 transitions. [2020-11-28 04:32:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:36,748 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 98 states and 200 transitions. [2020-11-28 04:32:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 200 transitions. [2020-11-28 04:32:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 04:32:36,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 04:32:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 98 states and 199 transitions. [2020-11-28 04:32:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 199 transitions. [2020-11-28 04:32:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:32:36,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-11-28 04:32:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 111 states and 207 transitions. [2020-11-28 04:32:39,215 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 207 transitions. [2020-11-28 04:32:39,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 04:32:39,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-11-28 04:32:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:42,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 136 states and 235 transitions. [2020-11-28 04:32:42,932 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 235 transitions. [2020-11-28 04:32:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:32:42,933 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-11-28 04:32:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:44,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 135 states and 233 transitions. [2020-11-28 04:32:44,109 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 233 transitions. [2020-11-28 04:32:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:32:44,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 136 states and 234 transitions. [2020-11-28 04:32:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 234 transitions. [2020-11-28 04:32:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 04:32:45,062 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:32:45,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:32:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:32:45,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:32:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:32:45,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:32:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:32:45,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:32:45,183 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 63 iterations. [2020-11-28 04:32:45,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:45 ImpRootNode [2020-11-28 04:32:45,239 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:45,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:45,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:45,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:45,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:15" (3/4) ... [2020-11-28 04:32:45,242 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:32:45,359 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0516fa11-c417-4920-998b-96e3c884b6a7/bin/ukojak/witness.graphml [2020-11-28 04:32:45,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:45,361 INFO L168 Benchmark]: Toolchain (without parser) took 30423.58 ms. Allocated memory was 109.1 MB in the beginning and 406.8 MB in the end (delta: 297.8 MB). Free memory was 86.4 MB in the beginning and 249.3 MB in the end (delta: -162.9 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,362 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:45,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.45 ms. Allocated memory is still 109.1 MB. Free memory was 86.1 MB in the beginning and 87.0 MB in the end (delta: -892.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 109.1 MB. Free memory was 87.0 MB in the beginning and 85.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:45,365 INFO L168 Benchmark]: Boogie Preprocessor took 48.27 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,365 INFO L168 Benchmark]: RCFGBuilder took 548.82 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 71.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,366 INFO L168 Benchmark]: CodeCheck took 29368.89 ms. Allocated memory was 109.1 MB in the beginning and 406.8 MB in the end (delta: 297.8 MB). Free memory was 71.6 MB in the beginning and 252.5 MB in the end (delta: -180.8 MB). Peak memory consumption was 118.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,367 INFO L168 Benchmark]: Witness Printer took 120.13 ms. Allocated memory is still 406.8 MB. Free memory was 252.5 MB in the beginning and 250.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:45,372 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, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.2s, OverallIterations: 63, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 1301935578 SDslu, 0 SDs, 0 SdLazy, 1540310462 SolverSat, -1927660336 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10656 GetRequests, 9785 SyntacticMatches, 543 SemanticMatches, 328 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56922 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1059 NumberOfCodeBlocks, 1059 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 967 ConstructedInterpolants, 0 QuantifiedInterpolants, 194573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 62 InterpolantComputations, 22 PerfectInterpolantSequences, 544/1664 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: 9]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND TRUE i == 5 [L11] free(p) [L11] free(p) [L11] free(p) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 50.0 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.45 ms. Allocated memory is still 109.1 MB. Free memory was 86.1 MB in the beginning and 87.0 MB in the end (delta: -892.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 109.1 MB. Free memory was 87.0 MB in the beginning and 85.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.27 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 84.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 548.82 ms. Allocated memory is still 109.1 MB. Free memory was 84.6 MB in the beginning and 71.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 29368.89 ms. Allocated memory was 109.1 MB in the beginning and 406.8 MB in the end (delta: 297.8 MB). Free memory was 71.6 MB in the beginning and 252.5 MB in the end (delta: -180.8 MB). Peak memory consumption was 118.0 MB. Max. memory is 16.1 GB. * Witness Printer took 120.13 ms. Allocated memory is still 406.8 MB. Free memory was 252.5 MB in the beginning and 250.4 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...