./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9 --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 6403ea17225d9927b82c2cb5a5e13cab8e302736934880873dcec33bef71c423 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:58:43,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:58:43,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-02 23:58:43,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:58:43,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:58:43,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:58:43,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:58:43,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:58:43,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:58:43,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:58:43,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:58:43,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:58:43,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:58:43,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:58:43,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:58:43,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:58:43,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:58:43,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:58:43,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:58:43,886 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 23:58:43,886 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 23:58:43,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:58:43,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:58:43,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:58:43,888 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:58:43,889 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:58:43,889 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:58:43,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:58:43,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:58:43,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:58:43,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:58:43,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:58:43,891 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:58:43,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:58:43,892 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:58:43,892 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_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6403ea17225d9927b82c2cb5a5e13cab8e302736934880873dcec33bef71c423 [2023-12-02 23:58:44,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:58:44,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:58:44,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:58:44,121 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:58:44,121 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:58:44,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-benchs/filter1.c.p+cfa-reducer.c [2023-12-02 23:58:46,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:58:47,054 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:58:47,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/sv-benchmarks/c/float-benchs/filter1.c.p+cfa-reducer.c [2023-12-02 23:58:47,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/data/1e2556eef/7b5ed88502414e38a91e9b3b7171e25c/FLAG6aafdd811 [2023-12-02 23:58:47,077 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/data/1e2556eef/7b5ed88502414e38a91e9b3b7171e25c [2023-12-02 23:58:47,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:58:47,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:58:47,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:58:47,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:58:47,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:58:47,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1da649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47, skipping insertion in model container [2023-12-02 23:58:47,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:58:47,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:58:47,264 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:58:47,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:58:47,295 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:58:47,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47 WrapperNode [2023-12-02 23:58:47,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:58:47,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:58:47,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:58:47,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:58:47,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,323 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2023-12-02 23:58:47,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:58:47,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:58:47,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:58:47,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:58:47,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:58:47,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:58:47,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:58:47,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:58:47,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:58:47,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:58:47,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:58:47,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:58:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:58:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:58:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:58:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:58:47,467 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:58:47,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:58:47,583 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:58:47,616 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:58:47,616 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 23:58:47,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:58:47 BoogieIcfgContainer [2023-12-02 23:58:47,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:58:47,619 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:58:47,619 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:58:47,628 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:58:47,628 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:58:47" (1/1) ... [2023-12-02 23:58:47,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:58:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2023-12-02 23:58:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2023-12-02 23:58:47,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:58:47,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:47,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:47,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-12-02 23:58:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-12-02 23:58:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:58:47,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:47,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2023-12-02 23:58:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2023-12-02 23:58:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:58:48,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:48,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2023-12-02 23:58:48,266 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2023-12-02 23:58:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 23:58:48,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:48,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2023-12-02 23:58:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-02 23:58:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:58:48,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:48,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2023-12-02 23:58:48,821 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-12-02 23:58:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 23:58:48,823 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:48,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2023-12-02 23:58:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2023-12-02 23:58:49,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 23:58:49,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:49,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 23:58:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2023-12-02 23:58:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2023-12-02 23:58:49,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 23:58:49,979 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-12-02 23:58:49,985 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-02 23:58:50,155 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-12-02 23:58:50,161 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:58:50,161 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:58:50,161 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2023-12-02 23:58:50,163 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 23:58:50,163 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2023-12-02 23:58:50,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:58:50 ImpRootNode [2023-12-02 23:58:50,164 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:58:50,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:58:50,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:58:50,165 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:58:50,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:58:47" (3/4) ... [2023-12-02 23:58:50,168 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 23:58:50,175 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 23:58:50,176 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 23:58:50,176 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 23:58:50,176 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 23:58:50,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:58:50,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 23:58:50,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:58:50,256 INFO L158 Benchmark]: Toolchain (without parser) took 3175.31ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 83.6MB in the end (delta: 51.6MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,257 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:58:50,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.22ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 124.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.74ms. Allocated memory is still 165.7MB. Free memory was 124.5MB in the beginning and 123.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,258 INFO L158 Benchmark]: Boogie Preprocessor took 19.41ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 121.9MB in the end (delta: 878.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,259 INFO L158 Benchmark]: RCFGBuilder took 273.41ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 111.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,259 INFO L158 Benchmark]: CodeCheck took 2545.55ms. Allocated memory is still 165.7MB. Free memory was 110.6MB in the beginning and 88.8MB in the end (delta: 21.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,260 INFO L158 Benchmark]: Witness Printer took 90.77ms. Allocated memory is still 165.7MB. Free memory was 88.8MB in the beginning and 83.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 23:58:50,262 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 203 mSDsluCounter, 388 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 398 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 268 mSDtfsCounter, 398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 847 GetRequests, 773 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1866 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 38/47 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: 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: 23]: Loop Invariant Derived loop invariant: (0 <= (main__i + 2147483648)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_0 == 0) || ((main__i <= 1000000) && (1 <= main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_2 == 0) || ((main__i <= 1000000) && (1 <= main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.22ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 124.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.74ms. Allocated memory is still 165.7MB. Free memory was 124.5MB in the beginning and 123.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.41ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 121.9MB in the end (delta: 878.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 273.41ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 111.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2545.55ms. Allocated memory is still 165.7MB. Free memory was 110.6MB in the beginning and 88.8MB in the end (delta: 21.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Witness Printer took 90.77ms. Allocated memory is still 165.7MB. Free memory was 88.8MB in the beginning and 83.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 23:58:50,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa97ff3-e078-4c13-aeee-edb15111a149/bin/ukojak-verify-Qdu7aM0XO9/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