./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --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 c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:39:42,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:39:42,437 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:39:42,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:39:42,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:39:42,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:39:42,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:39:42,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:39:42,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:39:42,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:39:42,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:39:42,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:39:42,496 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:39:42,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:39:42,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:39:42,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:39:42,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:39:42,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:39:42,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:39:42,500 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:39:42,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:39:42,501 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:39:42,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:39:42,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:39:42,503 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:39:42,503 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:39:42,504 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:39:42,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:39:42,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:42,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:39:42,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:39:42,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:39:42,507 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:39:42,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:39:42,508 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:39:42,508 INFO L153 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_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 [2023-11-21 18:39:42,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:39:42,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:39:42,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:39:42,959 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:39:42,959 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:39:42,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2023-11-21 18:39:46,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:39:46,234 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:39:46,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2023-11-21 18:39:46,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/data/18d7fe80c/b703de483dfa448bbe0d41a364c0a2e3/FLAG9214fa798 [2023-11-21 18:39:46,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/data/18d7fe80c/b703de483dfa448bbe0d41a364c0a2e3 [2023-11-21 18:39:46,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:39:46,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:39:46,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:46,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:39:46,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:39:46,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65af29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46, skipping insertion in model container [2023-11-21 18:39:46,286 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:39:46,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:46,556 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:39:46,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:39:46,601 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:39:46,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46 WrapperNode [2023-11-21 18:39:46,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:39:46,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:46,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:39:46,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:39:46,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,638 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2023-11-21 18:39:46,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:39:46,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:39:46,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:39:46,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:39:46,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:39:46,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:39:46,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:39:46,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:39:46,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:39:46" (1/1) ... [2023-11-21 18:39:46,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:39:46,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:39:46,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:39:46,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:39:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:39:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:39:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:39:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:39:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:39:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:39:46,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:39:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:39:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:39:46,836 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:39:46,839 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:39:47,005 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:39:47,079 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:39:47,079 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:39:47,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:47 BoogieIcfgContainer [2023-11-21 18:39:47,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:39:47,082 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:39:47,082 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:39:47,093 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:39:47,093 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:47" (1/1) ... [2023-11-21 18:39:47,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:39:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-21 18:39:47,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-21 18:39:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:39:47,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-21 18:39:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-21 18:39:47,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:39:47,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:47,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-21 18:39:47,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-21 18:39:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:39:47,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-21 18:39:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-21 18:39:47,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:39:47,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:47,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:39:48,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-11-21 18:39:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-21 18:39:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:39:48,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:39:48,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:39:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:39:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:39:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:39:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 18:39:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 18:39:48,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:39:48,443 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-21 18:39:48,451 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-21 18:39:48,472 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-21 18:39:48,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:39:48 ImpRootNode [2023-11-21 18:39:48,480 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:39:48,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:39:48,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:39:48,481 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:39:48,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:39:47" (3/4) ... [2023-11-21 18:39:48,484 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:39:48,492 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 18:39:48,492 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 18:39:48,493 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:39:48,493 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:39:48,614 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:39:48,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:39:48,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:39:48,617 INFO L158 Benchmark]: Toolchain (without parser) took 2342.20ms. Allocated memory is still 197.1MB. Free memory was 166.5MB in the beginning and 95.0MB in the end (delta: 71.5MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,619 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:39:48,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.70ms. Allocated memory is still 197.1MB. Free memory was 166.3MB in the beginning and 159.1MB in the end (delta: 7.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.00ms. Allocated memory is still 197.1MB. Free memory was 159.1MB in the beginning and 157.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,620 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 156.5MB in the end (delta: 478.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:39:48,621 INFO L158 Benchmark]: RCFGBuilder took 412.11ms. Allocated memory is still 197.1MB. Free memory was 155.7MB in the beginning and 159.7MB in the end (delta: -4.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,621 INFO L158 Benchmark]: CodeCheck took 1398.46ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 99.2MB in the end (delta: 60.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,622 INFO L158 Benchmark]: Witness Printer took 134.44ms. Allocated memory is still 197.1MB. Free memory was 99.2MB in the beginning and 95.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:39:48,630 INFO L338 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 0 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 184 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: 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: 24]: Loop Invariant Derived loop invariant: ((i == 0) || (1 <= i)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 72.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.70ms. Allocated memory is still 197.1MB. Free memory was 166.3MB in the beginning and 159.1MB in the end (delta: 7.2MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.00ms. Allocated memory is still 197.1MB. Free memory was 159.1MB in the beginning and 157.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 156.5MB in the end (delta: 478.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 412.11ms. Allocated memory is still 197.1MB. Free memory was 155.7MB in the beginning and 159.7MB in the end (delta: -4.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 1398.46ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 99.2MB in the end (delta: 60.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 134.44ms. Allocated memory is still 197.1MB. Free memory was 99.2MB in the beginning and 95.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:39:48,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1502dad1-c059-4820-a11b-095ff8796e38/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE