./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/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 8e693e301fe03afa61a3f7e2110361a5e60df7f9 ............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:17:16,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:17:16,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:17:16,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:17:16,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:17:16,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:17:16,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:17:16,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:17:16,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:17:16,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:17:16,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:17:16,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:17:16,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:17:16,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:17:16,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:17:16,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:17:16,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:17:16,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:17:16,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:17:16,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:17:16,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:17:16,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:17:16,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:17:16,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:17:16,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:17:16,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:17:16,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:17:16,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:17:16,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:17:16,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:17:16,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:17:16,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:17:16,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:17:16,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:17:16,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:17:16,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:17:16,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:17:16,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:17:16,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:17:16,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:17:16,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:17:16,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:17:16,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:17:16,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:17:16,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:17:16,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:17:16,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:17:16,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:17:16,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:17:16,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:17:16,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:17:16,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:17:16,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:17:16,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:17:16,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:17:16,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:17:16,657 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:17:16,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:17:16,657 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:17:16,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:17:16,658 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:17:16,658 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:17:16,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:17:16,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:17:16,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:17:16,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:17:16,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:17:16,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:17:16,660 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:17:16,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:17:16,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:17:16,662 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_21014e67-0880-4bf3-ae6f-2e42ece83101/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e693e301fe03afa61a3f7e2110361a5e60df7f9 [2020-12-01 18:17:16,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:17:16,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:17:16,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:17:16,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:17:16,951 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:17:16,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/../../sv-benchmarks/c/loop-invgen/id_build.i [2020-12-01 18:17:17,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/data/c71c7512b/6cd75a9418fe43f594711897ef5743c7/FLAG0802796e7 [2020-12-01 18:17:17,586 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:17:17,587 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/sv-benchmarks/c/loop-invgen/id_build.i [2020-12-01 18:17:17,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/data/c71c7512b/6cd75a9418fe43f594711897ef5743c7/FLAG0802796e7 [2020-12-01 18:17:17,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/data/c71c7512b/6cd75a9418fe43f594711897ef5743c7 [2020-12-01 18:17:17,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:17:17,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:17:17,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:17:17,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:17:17,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:17:17,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:17:17" (1/1) ... [2020-12-01 18:17:17,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@930ad4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:17, skipping insertion in model container [2020-12-01 18:17:17,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:17:17" (1/1) ... [2020-12-01 18:17:17,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:17:17,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:17:18,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:17:18,182 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:17:18,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:17:18,217 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:17:18,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18 WrapperNode [2020-12-01 18:17:18,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:17:18,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:17:18,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:17:18,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:17:18,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:17:18,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:17:18,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:17:18,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:17:18,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:17:18,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:17:18,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:17:18,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:17:18,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:17:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/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 [2020-12-01 18:17:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:17:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:17:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:17:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:17:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-12-01 18:17:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-12-01 18:17:18,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:17:18,718 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 18:17:18,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:17:18 BoogieIcfgContainer [2020-12-01 18:17:18,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:17:18,722 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:17:18,722 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:17:18,745 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:17:18,745 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:17:18" (1/1) ... [2020-12-01 18:17:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:17:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:17:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-01 18:17:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-01 18:17:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:17:18,828 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:17:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:17:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:17:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:17:19,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 22 transitions. [2020-12-01 18:17:19,191 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-01 18:17:19,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:17:19,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:17:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:17:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:17:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:17:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 31 transitions. [2020-12-01 18:17:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-12-01 18:17:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:17:19,513 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:17:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:17:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:17:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:17:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 26 transitions. [2020-12-01 18:17:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2020-12-01 18:17:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 18:17:19,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:17:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:17:19,995 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:17:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:17:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 11 states and 13 transitions. [2020-12-01 18:17:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 18:17:20,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:17:20,034 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-12-01 18:17:20,051 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:17:20,117 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:17:20,121 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:17:20,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:17:20 ImpRootNode [2020-12-01 18:17:20,122 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:17:20,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:17:20,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:17:20,124 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:17:20,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:17:18" (3/4) ... [2020-12-01 18:17:20,128 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:17:20,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-12-01 18:17:20,152 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-01 18:17:20,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 18:17:20,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:17:20,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:17:20,200 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_21014e67-0880-4bf3-ae6f-2e42ece83101/bin/ukojak/witness.graphml [2020-12-01 18:17:20,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:17:20,203 INFO L168 Benchmark]: Toolchain (without parser) took 2268.72 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 59.9 MB in the beginning and 75.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,203 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.8 MB in the beginning and 49.7 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:17:20,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.96 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 68.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,206 INFO L168 Benchmark]: Boogie Preprocessor took 29.61 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:17:20,206 INFO L168 Benchmark]: RCFGBuilder took 434.75 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 51.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,207 INFO L168 Benchmark]: CodeCheck took 1400.59 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 51.0 MB in the beginning and 77.8 MB in the end (delta: -26.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,208 INFO L168 Benchmark]: Witness Printer took 77.62 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 75.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:17:20,212 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, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 SDtfs, 76 SDslu, 104 SDs, 0 SdLazy, 372 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 478 GetRequests, 452 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 2602 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 25/33 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: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.8 MB in the beginning and 49.7 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.96 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 68.2 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.69 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.61 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 434.75 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 51.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1400.59 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 51.0 MB in the beginning and 77.8 MB in the end (delta: -26.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Witness Printer took 77.62 ms. Allocated memory is still 117.4 MB. Free memory was 77.8 MB in the beginning and 75.7 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...