./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6ff697c57265298ce2261966fa58c440777fc865 ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:10:32,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:32,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:32,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:32,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:32,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:32,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:32,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:32,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:32,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:32,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:32,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:32,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:32,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:32,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:32,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:32,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:32,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:32,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:32,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:32,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:32,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:32,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:32,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:32,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:32,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:32,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:32,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:32,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:32,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:32,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:32,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:32,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:32,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:32,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:32,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:32,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:32,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:32,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:32,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:32,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:32,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 00:10:33,028 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:33,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:33,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:10:33,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:10:33,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:33,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:33,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:33,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:10:33,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:33,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:33,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:10:33,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:10:33,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:10:33,035 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:10:33,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:33,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:33,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:10:33,036 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:10:33,036 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:10:33,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:33,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:10:33,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:10:33,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:33,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:10:33,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:10:33,039 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:10:33,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:10:33,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:10:33,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff697c57265298ce2261966fa58c440777fc865 [2020-11-30 00:10:33,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:33,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:33,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:33,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:33,440 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:33,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-11-30 00:10:33,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/data/858657140/ea4c72a30b494b65aae8311c358d1dd8/FLAGc6cadf406 [2020-11-30 00:10:34,216 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:34,216 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig2.c [2020-11-30 00:10:34,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/data/858657140/ea4c72a30b494b65aae8311c358d1dd8/FLAGc6cadf406 [2020-11-30 00:10:34,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/data/858657140/ea4c72a30b494b65aae8311c358d1dd8 [2020-11-30 00:10:34,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:34,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:34,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:34,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:34,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:34,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:34,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d31c10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34, skipping insertion in model container [2020-11-30 00:10:34,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:34,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:34,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:34,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:34,892 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:34,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:34,966 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:34,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34 WrapperNode [2020-11-30 00:10:34,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:34,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:34,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:34,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:34,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:34,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:35,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:35,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:35,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:35,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... [2020-11-30 00:10:35,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:35,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:35,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:35,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:35,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:10:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-30 00:10:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-30 00:10:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:35,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:35,930 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:10:35,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:35 BoogieIcfgContainer [2020-11-30 00:10:35,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:35,937 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:10:35,938 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:10:35,954 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:10:35,954 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:35" (1/1) ... [2020-11-30 00:10:35,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 45 transitions. [2020-11-30 00:10:36,016 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2020-11-30 00:10:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:10:36,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 44 transitions. [2020-11-30 00:10:36,221 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-11-30 00:10:36,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:10:36,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 34 states and 43 transitions. [2020-11-30 00:10:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2020-11-30 00:10:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:10:36,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2020-11-30 00:10:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-30 00:10:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:10:36,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 57 states and 90 transitions. [2020-11-30 00:10:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2020-11-30 00:10:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:10:36,789 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:36,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 69 states and 114 transitions. [2020-11-30 00:10:36,936 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 114 transitions. [2020-11-30 00:10:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:10:36,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 72 states and 123 transitions. [2020-11-30 00:10:37,281 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-11-30 00:10:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:10:37,283 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 70 states and 118 transitions. [2020-11-30 00:10:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 118 transitions. [2020-11-30 00:10:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:37,400 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 68 states and 114 transitions. [2020-11-30 00:10:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 114 transitions. [2020-11-30 00:10:37,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:37,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 66 states and 110 transitions. [2020-11-30 00:10:37,608 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 110 transitions. [2020-11-30 00:10:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:37,610 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 64 states and 106 transitions. [2020-11-30 00:10:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 106 transitions. [2020-11-30 00:10:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:37,694 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 60 states and 99 transitions. [2020-11-30 00:10:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 99 transitions. [2020-11-30 00:10:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:10:37,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:37,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 64 states and 107 transitions. [2020-11-30 00:10:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 107 transitions. [2020-11-30 00:10:38,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:10:38,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 72 states and 123 transitions. [2020-11-30 00:10:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 123 transitions. [2020-11-30 00:10:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:10:38,269 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:38,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 82 states and 145 transitions. [2020-11-30 00:10:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 145 transitions. [2020-11-30 00:10:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:10:38,624 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 90 states and 160 transitions. [2020-11-30 00:10:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 160 transitions. [2020-11-30 00:10:38,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:38,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 92 states and 165 transitions. [2020-11-30 00:10:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 165 transitions. [2020-11-30 00:10:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:38,918 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 94 states and 167 transitions. [2020-11-30 00:10:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 167 transitions. [2020-11-30 00:10:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 96 states and 169 transitions. [2020-11-30 00:10:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 169 transitions. [2020-11-30 00:10:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,080 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 98 states and 171 transitions. [2020-11-30 00:10:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 171 transitions. [2020-11-30 00:10:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,168 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 100 states and 177 transitions. [2020-11-30 00:10:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 177 transitions. [2020-11-30 00:10:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 102 states and 179 transitions. [2020-11-30 00:10:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 179 transitions. [2020-11-30 00:10:39,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 104 states and 181 transitions. [2020-11-30 00:10:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 181 transitions. [2020-11-30 00:10:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:39,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:39,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 106 states and 183 transitions. [2020-11-30 00:10:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 183 transitions. [2020-11-30 00:10:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:39,463 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:40,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 109 states and 197 transitions. [2020-11-30 00:10:40,251 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 197 transitions. [2020-11-30 00:10:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:10:40,252 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:40,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:40,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 109 states and 196 transitions. [2020-11-30 00:10:40,424 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 196 transitions. [2020-11-30 00:10:40,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:40,425 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:10:40,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:10:40,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 111 states and 197 transitions. [2020-11-30 00:10:40,759 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 197 transitions. [2020-11-30 00:10:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:10:40,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:10:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:40,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:40,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:40,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:40,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:40,837 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2020-11-30 00:10:40,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:10:40 ImpRootNode [2020-11-30 00:10:40,862 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:10:40,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:10:40,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:10:40,863 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:10:40,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:35" (3/4) ... [2020-11-30 00:10:40,867 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:10:40,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6376a039-da78-457f-800b-e2b41f7ff2dc/bin/ukojak/witness.graphml [2020-11-30 00:10:40,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:10:40,922 INFO L168 Benchmark]: Toolchain (without parser) took 6314.05 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 66.1 MB in the beginning and 53.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,923 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 94.4 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:40,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 73.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.72 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:40,926 INFO L168 Benchmark]: Boogie Preprocessor took 30.97 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,928 INFO L168 Benchmark]: RCFGBuilder took 869.94 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 70.2 MB in the beginning and 89.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,929 INFO L168 Benchmark]: CodeCheck took 4925.29 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 88.9 MB in the beginning and 55.7 MB in the end (delta: 33.2 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,930 INFO L168 Benchmark]: Witness Printer took 55.99 ms. Allocated memory is still 136.3 MB. Free memory was 55.7 MB in the beginning and 53.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:40,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 36 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 829693920 SDtfs, 950377890 SDslu, 1450672520 SDs, 0 SdLazy, 803229932 SolverSat, 202665982 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4110 GetRequests, 3792 SyntacticMatches, 246 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2383 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 380 ConstructedInterpolants, 0 QuantifiedInterpolants, 21274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 24 PerfectInterpolantSequences, 1/5 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: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] EXPR d - 1 [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND TRUE __VERIFIER_nondet_int() [L77] EXPR d - 1 [L77] d = d - 1 [L80] COND TRUE x > 0 [L81] x - d * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 94.4 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 73.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.72 ms. Allocated memory is still 94.4 MB. Free memory was 73.0 MB in the beginning and 71.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.97 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 869.94 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 70.2 MB in the beginning and 89.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * CodeCheck took 4925.29 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 88.9 MB in the beginning and 55.7 MB in the end (delta: 33.2 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. * Witness Printer took 55.99 ms. Allocated memory is still 136.3 MB. Free memory was 55.7 MB in the beginning and 53.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...