./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/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 3d1a973dcd7009ffcd2eda1338249f4d290fb62a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-01 03:25:48,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 03:25:48,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 03:25:48,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 03:25:48,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 03:25:48,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 03:25:48,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 03:25:48,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 03:25:48,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 03:25:48,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 03:25:48,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 03:25:48,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 03:25:48,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 03:25:48,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 03:25:48,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 03:25:48,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 03:25:48,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 03:25:48,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 03:25:48,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 03:25:48,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 03:25:48,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 03:25:48,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 03:25:48,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 03:25:48,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 03:25:48,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 03:25:48,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 03:25:48,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 03:25:48,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 03:25:48,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 03:25:48,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 03:25:48,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 03:25:48,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 03:25:48,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 03:25:48,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 03:25:48,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 03:25:48,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 03:25:48,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 03:25:48,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 03:25:48,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 03:25:48,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 03:25:48,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 03:25:48,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-01 03:25:48,098 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 03:25:48,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 03:25:48,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 03:25:48,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 03:25:48,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 03:25:48,099 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 03:25:48,100 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 03:25:48,101 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 03:25:48,101 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 03:25:48,101 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 03:25:48,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 03:25:48,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 03:25:48,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 03:25:48,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 03:25:48,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 03:25:48,102 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 03:25:48,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 03:25:48,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/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 -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2019-12-01 03:25:48,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 03:25:48,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 03:25:48,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 03:25:48,216 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 03:25:48,216 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 03:25:48,217 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-12-01 03:25:48,259 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/data/6fcf17e57/ca94ce5c82844402bf372636838b1d4f/FLAG309b304c6 [2019-12-01 03:25:48,685 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 03:25:48,685 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2019-12-01 03:25:48,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/data/6fcf17e57/ca94ce5c82844402bf372636838b1d4f/FLAG309b304c6 [2019-12-01 03:25:49,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/data/6fcf17e57/ca94ce5c82844402bf372636838b1d4f [2019-12-01 03:25:49,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 03:25:49,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 03:25:49,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 03:25:49,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 03:25:49,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 03:25:49,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296938c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49, skipping insertion in model container [2019-12-01 03:25:49,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 03:25:49,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 03:25:49,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:25:49,319 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 03:25:49,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:25:49,380 INFO L208 MainTranslator]: Completed translation [2019-12-01 03:25:49,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49 WrapperNode [2019-12-01 03:25:49,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 03:25:49,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 03:25:49,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 03:25:49,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 03:25:49,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 03:25:49,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 03:25:49,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 03:25:49,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 03:25:49,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 03:25:49,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 03:25:49,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 03:25:49,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 03:25:49,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:25:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 03:25:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 03:25:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 03:25:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 03:25:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 03:25:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 03:25:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 03:25:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 03:25:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 03:25:49,926 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 03:25:49,926 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-01 03:25:49,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:49 BoogieIcfgContainer [2019-12-01 03:25:49,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 03:25:49,927 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 03:25:49,927 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 03:25:49,934 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 03:25:49,934 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:49" (1/1) ... [2019-12-01 03:25:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 03:25:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:49,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 155 states and 186 transitions. [2019-12-01 03:25:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2019-12-01 03:25:49,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 03:25:49,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 154 states and 185 transitions. [2019-12-01 03:25:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2019-12-01 03:25:50,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 03:25:50,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 153 states and 184 transitions. [2019-12-01 03:25:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2019-12-01 03:25:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 03:25:50,181 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 152 states and 183 transitions. [2019-12-01 03:25:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2019-12-01 03:25:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 03:25:50,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 151 states and 182 transitions. [2019-12-01 03:25:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2019-12-01 03:25:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 03:25:50,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 150 states and 181 transitions. [2019-12-01 03:25:50,262 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 181 transitions. [2019-12-01 03:25:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 03:25:50,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 149 states and 180 transitions. [2019-12-01 03:25:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2019-12-01 03:25:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 03:25:50,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 148 states and 178 transitions. [2019-12-01 03:25:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2019-12-01 03:25:50,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 03:25:50,356 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 151 states and 184 transitions. [2019-12-01 03:25:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2019-12-01 03:25:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 03:25:50,493 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 150 states and 183 transitions. [2019-12-01 03:25:50,527 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2019-12-01 03:25:50,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 03:25:50,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 149 states and 182 transitions. [2019-12-01 03:25:50,726 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2019-12-01 03:25:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 03:25:50,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 151 states and 183 transitions. [2019-12-01 03:25:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 183 transitions. [2019-12-01 03:25:50,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 03:25:50,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:51,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 153 states and 186 transitions. [2019-12-01 03:25:51,236 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 186 transitions. [2019-12-01 03:25:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 03:25:51,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 155 states and 189 transitions. [2019-12-01 03:25:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2019-12-01 03:25:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 03:25:52,074 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 156 states and 191 transitions. [2019-12-01 03:25:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2019-12-01 03:25:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 03:25:52,235 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:52,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 157 states and 192 transitions. [2019-12-01 03:25:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2019-12-01 03:25:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 03:25:52,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:54,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:54,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 161 states and 199 transitions. [2019-12-01 03:25:54,305 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 199 transitions. [2019-12-01 03:25:54,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 03:25:54,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 163 states and 203 transitions. [2019-12-01 03:25:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 203 transitions. [2019-12-01 03:25:55,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 03:25:55,372 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 162 states and 202 transitions. [2019-12-01 03:25:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 202 transitions. [2019-12-01 03:25:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 03:25:55,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:55,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 164 states and 204 transitions. [2019-12-01 03:25:55,891 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 204 transitions. [2019-12-01 03:25:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 03:25:55,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:55,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 163 states and 203 transitions. [2019-12-01 03:25:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 203 transitions. [2019-12-01 03:25:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 03:25:55,914 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 137 states and 166 transitions. [2019-12-01 03:25:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 166 transitions. [2019-12-01 03:25:56,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 03:25:56,185 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:25:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:59,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 150 states and 184 transitions. [2019-12-01 03:25:59,723 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 184 transitions. [2019-12-01 03:25:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 03:25:59,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:25:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:25:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 150 states and 182 transitions. [2019-12-01 03:25:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2019-12-01 03:25:59,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-01 03:25:59,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:25:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:25:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:04,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 166 states and 206 transitions. [2019-12-01 03:26:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 206 transitions. [2019-12-01 03:26:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-01 03:26:04,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:06,927 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-12-01 03:26:11,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 182 states and 231 transitions. [2019-12-01 03:26:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 231 transitions. [2019-12-01 03:26:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-01 03:26:11,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 181 states and 230 transitions. [2019-12-01 03:26:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 230 transitions. [2019-12-01 03:26:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-01 03:26:11,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:11,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 180 states and 229 transitions. [2019-12-01 03:26:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 229 transitions. [2019-12-01 03:26:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 03:26:11,910 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:11,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 182 states and 232 transitions. [2019-12-01 03:26:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 232 transitions. [2019-12-01 03:26:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 03:26:11,936 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 184 states and 236 transitions. [2019-12-01 03:26:11,960 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 236 transitions. [2019-12-01 03:26:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 03:26:11,960 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:12,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 185 states and 237 transitions. [2019-12-01 03:26:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 237 transitions. [2019-12-01 03:26:12,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 03:26:12,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 198 states and 260 transitions. [2019-12-01 03:26:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 260 transitions. [2019-12-01 03:26:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-01 03:26:24,289 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:25,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 211 states and 286 transitions. [2019-12-01 03:26:30,363 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 286 transitions. [2019-12-01 03:26:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:30,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 210 states and 285 transitions. [2019-12-01 03:26:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 285 transitions. [2019-12-01 03:26:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:30,388 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 209 states and 284 transitions. [2019-12-01 03:26:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 284 transitions. [2019-12-01 03:26:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:30,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 209 states and 283 transitions. [2019-12-01 03:26:30,842 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 283 transitions. [2019-12-01 03:26:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:30,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 209 states and 282 transitions. [2019-12-01 03:26:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 282 transitions. [2019-12-01 03:26:31,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:31,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:31,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 210 states and 283 transitions. [2019-12-01 03:26:31,346 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 283 transitions. [2019-12-01 03:26:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-01 03:26:31,346 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:31,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 211 states and 283 transitions. [2019-12-01 03:26:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 283 transitions. [2019-12-01 03:26:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 03:26:31,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 210 states and 282 transitions. [2019-12-01 03:26:31,654 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 282 transitions. [2019-12-01 03:26:31,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 03:26:31,655 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:31,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:32,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 209 states and 281 transitions. [2019-12-01 03:26:32,419 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 281 transitions. [2019-12-01 03:26:32,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 03:26:32,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 212 states and 288 transitions. [2019-12-01 03:26:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 288 transitions. [2019-12-01 03:26:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 03:26:36,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 214 states and 290 transitions. [2019-12-01 03:26:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 290 transitions. [2019-12-01 03:26:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 03:26:39,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 217 states and 300 transitions. [2019-12-01 03:26:48,251 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 300 transitions. [2019-12-01 03:26:48,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-01 03:26:48,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 216 states and 299 transitions. [2019-12-01 03:26:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 299 transitions. [2019-12-01 03:26:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-01 03:26:48,281 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:49,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:49,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 215 states and 298 transitions. [2019-12-01 03:26:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 298 transitions. [2019-12-01 03:26:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-01 03:26:49,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-12-01 03:26:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:49,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 200 states and 278 transitions. [2019-12-01 03:26:49,576 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 278 transitions. [2019-12-01 03:26:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 03:26:49,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:49,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 199 states and 277 transitions. [2019-12-01 03:26:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 277 transitions. [2019-12-01 03:26:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 03:26:49,598 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 198 states and 276 transitions. [2019-12-01 03:26:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 276 transitions. [2019-12-01 03:26:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 03:26:49,620 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:26:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 203 states and 284 transitions. [2019-12-01 03:26:51,642 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2019-12-01 03:26:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-01 03:26:51,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:26:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 208 states and 293 transitions. [2019-12-01 03:26:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 293 transitions. [2019-12-01 03:26:54,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:26:54,822 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:26:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-01 03:26:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:26:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 214 states and 301 transitions. [2019-12-01 03:26:59,930 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 301 transitions. [2019-12-01 03:26:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:26:59,931 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:26:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:27:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:27:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:27:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 213 states and 300 transitions. [2019-12-01 03:27:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 300 transitions. [2019-12-01 03:27:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:27:01,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:27:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:27:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:27:07,639 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-12-01 03:27:10,055 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-01 03:27:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:27:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 224 states and 325 transitions. [2019-12-01 03:27:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 325 transitions. [2019-12-01 03:27:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:27:17,340 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:27:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:27:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:27:23,989 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-12-01 03:27:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:27:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 235 states and 348 transitions. [2019-12-01 03:27:34,974 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 348 transitions. [2019-12-01 03:27:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:27:34,974 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:27:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:27:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 252 states and 387 transitions. [2019-12-01 03:28:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 387 transitions. [2019-12-01 03:28:02,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:02,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 253 states and 389 transitions. [2019-12-01 03:28:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 389 transitions. [2019-12-01 03:28:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:03,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:04,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:04,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 254 states and 391 transitions. [2019-12-01 03:28:04,160 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 391 transitions. [2019-12-01 03:28:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:04,160 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:05,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 255 states and 393 transitions. [2019-12-01 03:28:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 393 transitions. [2019-12-01 03:28:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:05,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 257 states and 398 transitions. [2019-12-01 03:28:06,469 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 398 transitions. [2019-12-01 03:28:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:06,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:15,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 259 states and 395 transitions. [2019-12-01 03:28:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 395 transitions. [2019-12-01 03:28:15,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-01 03:28:15,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:28:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:28:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:28:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 227 states and 345 transitions. [2019-12-01 03:28:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 345 transitions. [2019-12-01 03:28:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-01 03:28:23,169 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:28:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:28:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:28:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:28:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:28:23,320 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 62 iterations. [2019-12-01 03:28:23,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 03:28:23 ImpRootNode [2019-12-01 03:28:23,349 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 03:28:23,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 03:28:23,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 03:28:23,349 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 03:28:23,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:25:49" (3/4) ... [2019-12-01 03:28:23,351 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 03:28:23,393 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_396396ba-434e-46f7-8667-40a0b54c9b75/bin/ukojak/witness.graphml [2019-12-01 03:28:23,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 03:28:23,394 INFO L168 Benchmark]: Toolchain (without parser) took 154349.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -122.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2019-12-01 03:28:23,395 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:28:23,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-01 03:28:23,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 03:28:23,396 INFO L168 Benchmark]: Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:28:23,396 INFO L168 Benchmark]: RCFGBuilder took 487.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. [2019-12-01 03:28:23,397 INFO L168 Benchmark]: CodeCheck took 153421.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:28:23,397 INFO L168 Benchmark]: Witness Printer took 44.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-01 03:28:23,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 155 locations, 80 error locations. Result: UNSAFE, OverallTime: 153.3s, OverallIterations: 62, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -1595932672 SDtfs, 1300578730 SDslu, -2058313272 SDs, 0 SdLazy, 1783687538 SolverSat, -1196067824 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10195 GetRequests, 9238 SyntacticMatches, 239 SemanticMatches, 718 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253652 ImplicationChecksByTransitivity, 149.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 1226 NumberOfCodeBlocks, 1226 NumberOfCodeBlocksAsserted, 62 NumberOfCheckSat, 1135 ConstructedInterpolants, 0 QuantifiedInterpolants, 198035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 61 InterpolantComputations, 44 PerfectInterpolantSequences, 70/161 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: 1027]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1017] marked = 0 [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 487.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. * CodeCheck took 153421.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 44.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...