./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/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 32bit --witnessprinter.graph.data.programhash f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 ................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:41:27,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:41:27,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:41:27,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:41:27,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:41:27,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:41:27,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:41:27,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:41:27,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:41:27,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:41:27,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:41:27,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:41:27,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:41:27,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:41:27,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:41:27,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:41:27,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:41:27,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:41:27,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:41:27,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:41:27,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:41:27,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:41:27,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:41:27,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:41:27,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:41:27,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:41:27,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:41:27,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:41:27,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:41:27,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:41:27,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:41:27,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:41:27,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:41:27,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:41:27,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:41:27,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:41:27,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:41:27,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:41:27,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:41:27,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:41:27,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:41:27,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-28 04:41:27,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:41:27,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:41:27,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:41:27,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:41:27,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:41:27,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:41:27,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:41:27,199 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:41:27,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:41:27,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:41:27,201 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:41:27,202 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:41:27,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:41:27,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:41:27,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:41:27,202 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:41:27,203 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:41:27,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:41:27,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:41:27,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:27,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:41:27,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:41:27,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:41:27,204 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:41:27,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:41:27,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:41:27,204 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_d7c29171-eeab-45c1-8c6f-d38fab89493f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f963e087de2c8fcbc7f626f7e7b1f1088f7756c7 [2020-11-28 04:41:27,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:41:27,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:41:27,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:41:27,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:41:27,502 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:41:27,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 04:41:27,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/data/89a32c265/be51a2686a2a4ab7971c6821c100ab7d/FLAG426625e3f [2020-11-28 04:41:28,110 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:41:28,111 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-11-28 04:41:28,122 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/data/89a32c265/be51a2686a2a4ab7971c6821c100ab7d/FLAG426625e3f [2020-11-28 04:41:28,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/data/89a32c265/be51a2686a2a4ab7971c6821c100ab7d [2020-11-28 04:41:28,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:41:28,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:41:28,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:28,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:41:28,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:41:28,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:28,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6060b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28, skipping insertion in model container [2020-11-28 04:41:28,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:28,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:41:28,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:41:28,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:28,779 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:41:28,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:28,947 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:41:28,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28 WrapperNode [2020-11-28 04:41:28,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:28,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:28,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:41:28,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:41:28,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:28,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:29,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:41:29,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:41:29,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:41:29,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... [2020-11-28 04:41:29,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:41:29,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:41:29,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:41:29,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:41:29,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:41:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:41:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:41:29,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:41:29,421 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 04:41:30,048 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-11-28 04:41:30,049 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-11-28 04:41:30,537 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:41:30,537 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:41:30,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:30 BoogieIcfgContainer [2020-11-28 04:41:30,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:41:30,540 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:41:30,541 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:41:30,551 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:41:30,551 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:30" (1/1) ... [2020-11-28 04:41:30,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:41:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:30,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 86 states and 147 transitions. [2020-11-28 04:41:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 147 transitions. [2020-11-28 04:41:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:41:30,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 88 states and 148 transitions. [2020-11-28 04:41:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 148 transitions. [2020-11-28 04:41:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 04:41:30,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:41:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 87 states and 147 transitions. [2020-11-28 04:41:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 147 transitions. [2020-11-28 04:41:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:41:30,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:41:31,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:31,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 86 states and 146 transitions. [2020-11-28 04:41:31,102 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 146 transitions. [2020-11-28 04:41:31,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:41:31,104 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-11-28 04:41:31,111 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-28 04:41:31,191 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,195 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,195 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,195 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,195 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,195 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,196 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,197 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,198 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:41:31,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:41:31 ImpRootNode [2020-11-28 04:41:31,198 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:41:31,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:41:31,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:41:31,199 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:41:31,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:30" (3/4) ... [2020-11-28 04:41:31,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:41:31,225 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2020-11-28 04:41:31,227 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:41:31,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:41:31,229 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:41:31,366 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d7c29171-eeab-45c1-8c6f-d38fab89493f/bin/ukojak/witness.graphml [2020-11-28 04:41:31,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:41:31,368 INFO L168 Benchmark]: Toolchain (without parser) took 2910.70 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 40.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,368 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 81.8 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:31,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.92 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 77.1 MB in the end (delta: -30.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,369 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 74.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,369 INFO L168 Benchmark]: Boogie Preprocessor took 37.36 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 72.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:41:31,370 INFO L168 Benchmark]: RCFGBuilder took 1482.83 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 52.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,370 INFO L168 Benchmark]: CodeCheck took 657.81 ms. Allocated memory is still 100.7 MB. Free memory was 52.8 MB in the beginning and 49.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,371 INFO L168 Benchmark]: Witness Printer took 167.22 ms. Allocated memory is still 100.7 MB. Free memory was 49.1 MB in the beginning and 40.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:41:31,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 86 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 14 SDslu, 8 SDs, 0 SdLazy, 62 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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 - PositiveResult [Line: 276]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 276]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 81.8 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.92 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 77.1 MB in the end (delta: -30.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 74.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.36 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 72.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1482.83 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 52.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * CodeCheck took 657.81 ms. Allocated memory is still 100.7 MB. Free memory was 52.8 MB in the beginning and 49.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Witness Printer took 167.22 ms. Allocated memory is still 100.7 MB. Free memory was 49.1 MB in the beginning and 40.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...