./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/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_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:46:09,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:46:09,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:46:09,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:46:09,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:46:09,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:46:09,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:46:09,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:46:09,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:46:09,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:46:09,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:46:09,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:46:09,685 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:46:09,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:46:09,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:46:09,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:46:09,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:46:09,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:46:09,687 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:46:09,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:46:09,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:46:09,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:46:09,690 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:46:09,690 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:46:09,691 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:46:09,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:46:09,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:46:09,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:46:09,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:46:09,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:46:09,693 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:46:09,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:46:09,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:46:09,694 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_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc [2023-12-02 21:46:09,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:46:09,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:46:09,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:46:09,946 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:46:09,946 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:46:09,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-12-02 21:46:12,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:46:12,859 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:46:12,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-12-02 21:46:12,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/data/6be9fce8d/16bd4c8db1ff4f7bb3a8921a99daca88/FLAGd7f4f6d0c [2023-12-02 21:46:12,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/data/6be9fce8d/16bd4c8db1ff4f7bb3a8921a99daca88 [2023-12-02 21:46:12,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:46:12,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:46:12,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:46:12,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:46:12,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:46:12,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:12" (1/1) ... [2023-12-02 21:46:12,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4867e5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:12, skipping insertion in model container [2023-12-02 21:46:12,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:12" (1/1) ... [2023-12-02 21:46:12,913 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:46:13,031 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-12-02 21:46:13,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:46:13,080 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:46:13,094 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-12-02 21:46:13,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:46:13,129 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:46:13,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13 WrapperNode [2023-12-02 21:46:13,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:46:13,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:46:13,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:46:13,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:46:13,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,181 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-12-02 21:46:13,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:46:13,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:46:13,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:46:13,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:46:13,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:46:13,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:46:13,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:46:13,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:46:13,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:46:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:46:13,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:46:13,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:46:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:46:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 21:46:13,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 21:46:13,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:46:13,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:46:13,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:46:13,370 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:46:13,372 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:46:13,609 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:46:13,731 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:46:13,731 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:46:13,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:13 BoogieIcfgContainer [2023-12-02 21:46:13,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:46:13,734 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:46:13,734 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:46:13,746 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:46:13,746 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:13" (1/1) ... [2023-12-02 21:46:13,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:46:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:46:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-12-02 21:46:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-12-02 21:46:13,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 21:46:13,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:46:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:46:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:46:14,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:46:14,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:46:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 21:46:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:46:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 68 transitions. [2023-12-02 21:46:16,187 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2023-12-02 21:46:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 21:46:16,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:46:16,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:46:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:46:16,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:46:16,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:46:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 21:46:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:46:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 21 states and 29 transitions. [2023-12-02 21:46:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-12-02 21:46:17,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:46:17,094 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-12-02 21:46:17,102 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 21:46:17,187 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:46:17,190 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:46:17,190 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:46:17,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:46:17 ImpRootNode [2023-12-02 21:46:17,191 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:46:17,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:46:17,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:46:17,192 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:46:17,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:13" (3/4) ... [2023-12-02 21:46:17,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:46:17,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 21:46:17,203 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-12-02 21:46:17,204 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 21:46:17,204 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-02 21:46:17,204 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:46:17,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:46:17,303 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:46:17,303 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:46:17,304 INFO L158 Benchmark]: Toolchain (without parser) took 4422.40ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 111.0MB in the beginning and 135.7MB in the end (delta: -24.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-12-02 21:46:17,304 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:46:17,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.84ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 98.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:46:17,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.56ms. Allocated memory is still 157.3MB. Free memory was 98.7MB in the beginning and 96.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:46:17,306 INFO L158 Benchmark]: Boogie Preprocessor took 31.96ms. Allocated memory is still 157.3MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:46:17,306 INFO L158 Benchmark]: RCFGBuilder took 518.18ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 67.3MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 21:46:17,306 INFO L158 Benchmark]: CodeCheck took 3456.79ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 67.3MB in the beginning and 141.9MB in the end (delta: -74.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:46:17,306 INFO L158 Benchmark]: Witness Printer took 111.94ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 135.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 21:46:17,308 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 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 333 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 26 mSDtfsCounter, 333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 856 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 435 SizeOfPredicates, 15 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 299/311 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: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.84ms. Allocated memory is still 157.3MB. Free memory was 110.7MB in the beginning and 98.7MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.56ms. Allocated memory is still 157.3MB. Free memory was 98.7MB in the beginning and 96.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.96ms. Allocated memory is still 157.3MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.18ms. Allocated memory is still 157.3MB. Free memory was 94.8MB in the beginning and 67.3MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * CodeCheck took 3456.79ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 67.3MB in the beginning and 141.9MB in the end (delta: -74.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 111.94ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 135.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 21:46:17,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bb3b6b7-d7e9-4df0-8675-6ce13616d1fd/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