./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-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_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/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 f369e67185304fce6130a1dfc66e8cb89abf0605 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:47:17,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 11:47:17,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 11:47:17,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 11:47:17,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 11:47:17,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 11:47:17,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 11:47:17,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 11:47:17,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 11:47:17,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 11:47:17,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 11:47:17,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 11:47:17,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 11:47:17,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 11:47:17,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 11:47:17,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 11:47:17,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 11:47:17,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 11:47:17,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 11:47:17,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 11:47:17,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 11:47:17,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 11:47:17,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 11:47:17,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 11:47:17,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 11:47:17,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 11:47:17,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 11:47:17,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 11:47:17,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 11:47:17,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 11:47:17,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 11:47:17,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 11:47:17,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 11:47:17,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 11:47:17,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 11:47:17,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 11:47:17,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 11:47:17,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 11:47:17,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 11:47:17,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 11:47:17,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 11:47:17,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-01 11:47:17,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 11:47:17,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 11:47:17,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 11:47:17,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 11:47:17,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 11:47:17,661 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 11:47:17,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 11:47:17,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 11:47:17,663 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 11:47:17,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 11:47:17,663 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 11:47:17,663 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 11:47:17,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 11:47:17,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 11:47:17,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 11:47:17,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 11:47:17,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 11:47:17,664 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 11:47:17,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 11:47:17,665 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_ebb9a479-ace8-499e-ba18-15279089079c/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 -> f369e67185304fce6130a1dfc66e8cb89abf0605 [2019-12-01 11:47:17,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 11:47:17,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 11:47:17,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 11:47:17,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 11:47:17,772 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 11:47:17,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-12-01 11:47:17,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/data/fc698466a/5a07dce0e0244ed6940758485e7b8725/FLAG690e51e89 [2019-12-01 11:47:18,259 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 11:47:18,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/sv-benchmarks/c/forester-heap/dll-simple-white-blue-1.i [2019-12-01 11:47:18,269 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/data/fc698466a/5a07dce0e0244ed6940758485e7b8725/FLAG690e51e89 [2019-12-01 11:47:18,277 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/data/fc698466a/5a07dce0e0244ed6940758485e7b8725 [2019-12-01 11:47:18,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 11:47:18,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 11:47:18,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 11:47:18,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 11:47:18,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 11:47:18,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3482028c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18, skipping insertion in model container [2019-12-01 11:47:18,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 11:47:18,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 11:47:18,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:47:18,542 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 11:47:18,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:47:18,606 INFO L208 MainTranslator]: Completed translation [2019-12-01 11:47:18,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18 WrapperNode [2019-12-01 11:47:18,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 11:47:18,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 11:47:18,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 11:47:18,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 11:47:18,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 11:47:18,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 11:47:18,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 11:47:18,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 11:47:18,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... [2019-12-01 11:47:18,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 11:47:18,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 11:47:18,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 11:47:18,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 11:47:18,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:47:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/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 11:47:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 11:47:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 11:47:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 11:47:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 11:47:18,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 11:47:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 11:47:18,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 11:47:18,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 11:47:19,082 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 11:47:19,082 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-01 11:47:19,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:47:19 BoogieIcfgContainer [2019-12-01 11:47:19,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 11:47:19,083 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 11:47:19,083 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 11:47:19,091 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 11:47:19,091 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:47:19" (1/1) ... [2019-12-01 11:47:19,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 11:47:19,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 109 states and 122 transitions. [2019-12-01 11:47:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2019-12-01 11:47:19,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 11:47:19,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,219 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 11:47:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 108 states and 121 transitions. [2019-12-01 11:47:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2019-12-01 11:47:19,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 11:47:19,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,271 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 11:47:19,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 107 states and 120 transitions. [2019-12-01 11:47:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 120 transitions. [2019-12-01 11:47:19,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 11:47:19,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,349 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 11:47:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 106 states and 119 transitions. [2019-12-01 11:47:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2019-12-01 11:47:19,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 11:47:19,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,378 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 11:47:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 105 states and 118 transitions. [2019-12-01 11:47:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2019-12-01 11:47:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 11:47:19,391 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,413 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 11:47:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 104 states and 117 transitions. [2019-12-01 11:47:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2019-12-01 11:47:19,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 11:47:19,425 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,447 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 11:47:19,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 103 states and 116 transitions. [2019-12-01 11:47:19,460 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2019-12-01 11:47:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 11:47:19,460 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,507 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 11:47:19,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 102 states and 114 transitions. [2019-12-01 11:47:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2019-12-01 11:47:19,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 11:47:19,534 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,596 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 11:47:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 105 states and 119 transitions. [2019-12-01 11:47:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2019-12-01 11:47:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 11:47:19,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,705 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 11:47:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 104 states and 118 transitions. [2019-12-01 11:47:19,715 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2019-12-01 11:47:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 11:47:19,716 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,787 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 11:47:19,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 103 states and 117 transitions. [2019-12-01 11:47:19,918 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-12-01 11:47:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:19,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,932 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 11:47:19,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 102 states and 116 transitions. [2019-12-01 11:47:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2019-12-01 11:47:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:19,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:19,978 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 11:47:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 101 states and 115 transitions. [2019-12-01 11:47:20,073 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2019-12-01 11:47:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:20,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:20,086 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 11:47:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 106 states and 124 transitions. [2019-12-01 11:47:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2019-12-01 11:47:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:20,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:20,204 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 11:47:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 111 states and 134 transitions. [2019-12-01 11:47:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2019-12-01 11:47:20,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:20,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:20,407 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 11:47:20,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 113 states and 137 transitions. [2019-12-01 11:47:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 137 transitions. [2019-12-01 11:47:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:47:20,704 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:20,817 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 11:47:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 115 states and 140 transitions. [2019-12-01 11:47:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 140 transitions. [2019-12-01 11:47:21,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:47:21,567 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:21,588 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 11:47:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 114 states and 139 transitions. [2019-12-01 11:47:21,601 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2019-12-01 11:47:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:47:21,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:21,622 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 11:47:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 113 states and 138 transitions. [2019-12-01 11:47:21,633 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 138 transitions. [2019-12-01 11:47:21,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:47:21,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:21,646 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 11:47:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 114 states and 140 transitions. [2019-12-01 11:47:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2019-12-01 11:47:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:47:21,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:21,799 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 11:47:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 115 states and 141 transitions. [2019-12-01 11:47:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2019-12-01 11:47:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:21,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:21,992 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 11:47:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:22,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 114 states and 140 transitions. [2019-12-01 11:47:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2019-12-01 11:47:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:22,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:22,024 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 11:47:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 113 states and 139 transitions. [2019-12-01 11:47:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2019-12-01 11:47:22,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:22,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:22,042 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 11:47:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 114 states and 141 transitions. [2019-12-01 11:47:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 141 transitions. [2019-12-01 11:47:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:22,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:22,075 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 11:47:22,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 115 states and 142 transitions. [2019-12-01 11:47:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 142 transitions. [2019-12-01 11:47:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:22,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:22,246 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 11:47:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 119 states and 149 transitions. [2019-12-01 11:47:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 149 transitions. [2019-12-01 11:47:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:47:23,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:24,087 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 11:47:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 121 states and 153 transitions. [2019-12-01 11:47:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2019-12-01 11:47:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,101 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 11:47:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 120 states and 152 transitions. [2019-12-01 11:47:25,116 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2019-12-01 11:47:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,137 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 11:47:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 123 states and 157 transitions. [2019-12-01 11:47:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 157 transitions. [2019-12-01 11:47:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,298 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 11:47:25,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 122 states and 155 transitions. [2019-12-01 11:47:25,301 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2019-12-01 11:47:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,310 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 11:47:25,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 119 states and 152 transitions. [2019-12-01 11:47:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 152 transitions. [2019-12-01 11:47:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,408 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 11:47:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 118 states and 151 transitions. [2019-12-01 11:47:25,418 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2019-12-01 11:47:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,418 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,442 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 11:47:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 117 states and 150 transitions. [2019-12-01 11:47:25,451 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2019-12-01 11:47:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,459 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 11:47:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 116 states and 149 transitions. [2019-12-01 11:47:25,472 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 149 transitions. [2019-12-01 11:47:25,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:47:25,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:25,738 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 11:47:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 93 states and 114 transitions. [2019-12-01 11:47:25,995 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2019-12-01 11:47:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:47:25,996 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:26,006 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 11:47:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 95 states and 118 transitions. [2019-12-01 11:47:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 118 transitions. [2019-12-01 11:47:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:47:26,023 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:26,036 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 11:47:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 97 states and 123 transitions. [2019-12-01 11:47:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2019-12-01 11:47:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:47:26,187 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:26,193 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 11:47:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 96 states and 122 transitions. [2019-12-01 11:47:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 122 transitions. [2019-12-01 11:47:26,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:47:26,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:26,280 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 11:47:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 95 states and 121 transitions. [2019-12-01 11:47:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 121 transitions. [2019-12-01 11:47:26,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:47:26,332 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:26,708 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 11:47:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 101 states and 130 transitions. [2019-12-01 11:47:28,800 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 130 transitions. [2019-12-01 11:47:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:47:28,800 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:28,880 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 11:47:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 103 states and 133 transitions. [2019-12-01 11:47:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 133 transitions. [2019-12-01 11:47:29,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:47:29,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,468 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 11:47:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 105 states and 136 transitions. [2019-12-01 11:47:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 136 transitions. [2019-12-01 11:47:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,854 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,862 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 11:47:29,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 104 states and 135 transitions. [2019-12-01 11:47:29,873 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2019-12-01 11:47:29,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,900 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 11:47:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 106 states and 139 transitions. [2019-12-01 11:47:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2019-12-01 11:47:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,916 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 11:47:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 105 states and 138 transitions. [2019-12-01 11:47:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2019-12-01 11:47:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,926 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,945 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 11:47:29,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 106 states and 141 transitions. [2019-12-01 11:47:29,955 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 141 transitions. [2019-12-01 11:47:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,955 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:29,962 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 11:47:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 105 states and 140 transitions. [2019-12-01 11:47:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2019-12-01 11:47:29,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:47:29,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:30,073 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 11:47:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 106 states and 142 transitions. [2019-12-01 11:47:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 142 transitions. [2019-12-01 11:47:30,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 11:47:30,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:47:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 113 states and 155 transitions. [2019-12-01 11:47:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2019-12-01 11:47:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 11:47:33,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:47:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 121 states and 172 transitions. [2019-12-01 11:47:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 172 transitions. [2019-12-01 11:47:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:47:35,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:36,037 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 11:47:36,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 124 states and 178 transitions. [2019-12-01 11:47:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 178 transitions. [2019-12-01 11:47:36,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:47:36,072 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:36,208 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 11:47:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:36,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 127 states and 184 transitions. [2019-12-01 11:47:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 184 transitions. [2019-12-01 11:47:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:47:36,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:36,448 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 11:47:40,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 133 states and 193 transitions. [2019-12-01 11:47:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 193 transitions. [2019-12-01 11:47:40,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:47:40,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:40,976 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 11:47:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 141 states and 205 transitions. [2019-12-01 11:47:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 205 transitions. [2019-12-01 11:47:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:47:44,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:45,272 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 11:47:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:51,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 152 states and 222 transitions. [2019-12-01 11:47:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 222 transitions. [2019-12-01 11:47:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 11:47:51,205 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:51,216 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 11:47:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 158 states and 239 transitions. [2019-12-01 11:47:52,372 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 239 transitions. [2019-12-01 11:47:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 11:47:52,373 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:52,409 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 11:47:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 164 states and 256 transitions. [2019-12-01 11:47:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 256 transitions. [2019-12-01 11:47:53,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 11:47:53,687 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:53,950 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 11:47:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:47:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 170 states and 271 transitions. [2019-12-01 11:47:58,569 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 271 transitions. [2019-12-01 11:47:58,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 11:47:58,570 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:47:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:47:58,578 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 11:48:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:48:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 178 states and 284 transitions. [2019-12-01 11:48:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 284 transitions. [2019-12-01 11:48:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-01 11:48:02,859 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:48:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:48:03,199 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 11:48:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:48:13,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 187 states and 299 transitions. [2019-12-01 11:48:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 299 transitions. [2019-12-01 11:48:13,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 11:48:13,352 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:48:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:48:13,364 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 11:48:14,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:48:14,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 188 states and 300 transitions. [2019-12-01 11:48:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2019-12-01 11:48:14,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 11:48:14,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:48:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:48:14,271 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 11:48:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:48:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 189 states and 301 transitions. [2019-12-01 11:48:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 301 transitions. [2019-12-01 11:48:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 11:48:14,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:48:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:48:14,607 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 11:48:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:48:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 191 states and 310 transitions. [2019-12-01 11:48:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 310 transitions. [2019-12-01 11:48:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 11:48:15,132 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:48:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:48:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:48:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:48:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:48:15,247 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 63 iterations. [2019-12-01 11:48:15,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:48:15 ImpRootNode [2019-12-01 11:48:15,270 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 11:48:15,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 11:48:15,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 11:48:15,271 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 11:48:15,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:47:19" (3/4) ... [2019-12-01 11:48:15,272 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 11:48:15,308 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ebb9a479-ace8-499e-ba18-15279089079c/bin/ukojak/witness.graphml [2019-12-01 11:48:15,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 11:48:15,309 INFO L168 Benchmark]: Toolchain (without parser) took 57028.96 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. [2019-12-01 11:48:15,310 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 11:48:15,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-01 11:48:15,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 1.1 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 11:48:15,311 INFO L168 Benchmark]: Boogie Preprocessor took 22.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 11:48:15,311 INFO L168 Benchmark]: RCFGBuilder took 419.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-12-01 11:48:15,312 INFO L168 Benchmark]: CodeCheck took 56186.90 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 201.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 89.6 MB. Max. memory is 11.5 GB. [2019-12-01 11:48:15,312 INFO L168 Benchmark]: Witness Printer took 37.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-12-01 11:48:15,315 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, 109 locations, 61 error locations. Result: UNSAFE, OverallTime: 56.1s, OverallIterations: 63, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10492052 SDtfs, 1356594632 SDslu, 1084674812 SDs, 0 SdLazy, 396556770 SolverSat, 243552678 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6019 GetRequests, 5500 SyntacticMatches, 109 SemanticMatches, 410 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74184 ImplicationChecksByTransitivity, 53.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 770 NumberOfCodeBlocks, 770 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 689 ConstructedInterpolants, 0 QuantifiedInterpolants, 44714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 62 InterpolantComputations, 58 PerfectInterpolantSequences, 0/6 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: 1052]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L989] SLL* head = malloc(sizeof(SLL)); [L990] head->next = ((void*)0) [L991] head->prev = ((void*)0) [L992] head->data = 0 [L994] SLL* x = head; [L997] COND FALSE !(__VERIFIER_nondet_int()) [L1008] COND TRUE __VERIFIER_nondet_int() [L1009] x = malloc(sizeof(SLL)) [L1010] x->data = 1 [L1011] x->next = head [L1012] x->prev = ((void*)0) [L1013] head = x [L1039] x = head [L1042] EXPR x->data [L1042] COND FALSE !(x->data != 1) [L1048] EXPR x->next [L1048] x = x->next [L1049] COND TRUE \read(*x) [L1051] EXPR x->data [L1051] COND TRUE x->data != 1 [L1052] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.53 ms. Allocated memory is still 1.1 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 22.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 419.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. * CodeCheck took 56186.90 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 201.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 89.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...