./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c36731cef1d53320fac5b82a4561e604c7894e53 ............................................................................................................................................................................................................................................................................. 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 04:37:37,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:37:37,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:37:37,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:37:37,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:37:37,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:37:37,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:37:37,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:37:37,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:37:37,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:37:37,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:37:37,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:37:37,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:37:37,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:37:37,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:37:37,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:37:37,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:37:37,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:37:37,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:37:37,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:37:37,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:37:37,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:37:37,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:37:37,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:37:37,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:37:37,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:37:37,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:37:37,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:37:37,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:37:37,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:37:37,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:37:37,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:37:37,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:37:37,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:37:37,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:37:37,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:37:37,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:37:37,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:37:37,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:37:37,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:37:37,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:37:37,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:37:37,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:37:37,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:37:37,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:37:37,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:37:37,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:37:37,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:37:37,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:37:37,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:37:37,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:37:37,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:37:37,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:37:37,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:37:37,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:37:37,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:37:37,347 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:37:37,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:37:37,347 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:37:37,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:37:37,348 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:37:37,348 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:37:37,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:37:37,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:37:37,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:37:37,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:37:37,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:37:37,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:37:37,350 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:37:37,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:37:37,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:37:37,353 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_fb536592-33ac-44d4-89c7-d0b5dac74c8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c36731cef1d53320fac5b82a4561e604c7894e53 [2020-11-28 04:37:37,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:37:37,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:37:37,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:37:37,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:37:37,706 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:37:37,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-28 04:37:37,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/data/dc61d1f2a/a00ebfa540e64fe3a90548bc7c5a7c01/FLAG9ac4c5b81 [2020-11-28 04:37:38,358 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:37:38,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2020-11-28 04:37:38,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/data/dc61d1f2a/a00ebfa540e64fe3a90548bc7c5a7c01/FLAG9ac4c5b81 [2020-11-28 04:37:38,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/data/dc61d1f2a/a00ebfa540e64fe3a90548bc7c5a7c01 [2020-11-28 04:37:38,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:37:38,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:37:38,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:38,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:37:38,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:37:38,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:38" (1/1) ... [2020-11-28 04:37:38,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdc34f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:38, skipping insertion in model container [2020-11-28 04:37:38,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:38" (1/1) ... [2020-11-28 04:37:38,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:37:38,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:37:38,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:39,002 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:37:39,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:37:39,073 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:37:39,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39 WrapperNode [2020-11-28 04:37:39,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:37:39,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:39,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:37:39,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:37:39,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:37:39,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:37:39,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:37:39,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:37:39,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:37:39,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:37:39,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:37:39,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:37:39,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/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 04:37:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:37:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:37:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:37:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:37:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:37:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:37:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-11-28 04:37:39,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:37:39,638 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:37:39,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:39 BoogieIcfgContainer [2020-11-28 04:37:39,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:37:39,642 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:37:39,642 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:37:39,662 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:37:39,663 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:39" (1/1) ... [2020-11-28 04:37:39,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:37:39,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-11-28 04:37:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-11-28 04:37:39,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:37:39,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:39,948 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 04:37:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-28 04:37:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 04:37:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:37:39,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:40,103 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 04:37:40,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:40,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-28 04:37:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-28 04:37:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:37:40,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:40,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:37:40,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:40,542 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 04:37:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2020-11-28 04:37:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2020-11-28 04:37:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:37:41,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:41,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:37:41,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:41,349 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 04:37:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2020-11-28 04:37:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2020-11-28 04:37:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:37:42,467 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 04:37:42,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 36 states and 63 transitions. [2020-11-28 04:37:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-11-28 04:37:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:37:43,645 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:43,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 04:37:43,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:37:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 67 transitions. [2020-11-28 04:37:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2020-11-28 04:37:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:37:44,810 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:37:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:37:44,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 04:37:44,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:37:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:37:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:37:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 18 states and 19 transitions. [2020-11-28 04:37:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-11-28 04:37:45,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:37:45,721 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-28 04:37:45,726 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:37:45,842 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:37:45,846 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-11-28 04:37:45,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:37:45 ImpRootNode [2020-11-28 04:37:45,852 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:37:45,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:37:45,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:37:45,853 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:37:45,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:39" (3/4) ... [2020-11-28 04:37:45,857 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:37:45,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:37:45,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:37:45,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:37:45,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:37:45,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:37:45,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fb536592-33ac-44d4-89c7-d0b5dac74c8a/bin/ukojak/witness.graphml [2020-11-28 04:37:45,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:37:45,924 INFO L168 Benchmark]: Toolchain (without parser) took 7210.89 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 68.2 MB in the beginning and 119.8 MB in the end (delta: -51.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,924 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:45,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.55 ms. Allocated memory is still 100.7 MB. Free memory was 68.1 MB in the beginning and 77.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,925 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.06 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,926 INFO L168 Benchmark]: Boogie Preprocessor took 40.32 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 74.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:37:45,926 INFO L168 Benchmark]: RCFGBuilder took 463.65 ms. Allocated memory is still 100.7 MB. Free memory was 74.7 MB in the beginning and 58.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,927 INFO L168 Benchmark]: CodeCheck took 6210.55 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 58.9 MB in the beginning and 121.9 MB in the end (delta: -63.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,927 INFO L168 Benchmark]: Witness Printer took 65.41 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 119.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:37:45,930 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, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1520 SDtfs, 224 SDslu, 328 SDs, 0 SdLazy, 2448 SolverSat, 848 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 703 GetRequests, 612 SyntacticMatches, 9 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2348 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 2971 SizeOfPredicates, 8 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 4/7 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: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((b == 1 && counter == 0) && q == 0) && A == r) || (((1 <= counter && 1 <= r % 4294967296) && q == 0) && A == r) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 73.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.55 ms. Allocated memory is still 100.7 MB. Free memory was 68.1 MB in the beginning and 77.3 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.06 ms. Allocated memory is still 100.7 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.32 ms. Allocated memory is still 100.7 MB. Free memory was 76.1 MB in the beginning and 74.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 463.65 ms. Allocated memory is still 100.7 MB. Free memory was 74.7 MB in the beginning and 58.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 6210.55 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 58.9 MB in the beginning and 121.9 MB in the end (delta: -63.0 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. * Witness Printer took 65.41 ms. Allocated memory is still 159.4 MB. Free memory was 121.9 MB in the beginning and 119.8 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 correct! Received shutdown request...