./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/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_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:28:15,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:28:15,296 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-21 18:28:15,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:28:15,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:28:15,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:28:15,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:28:15,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:28:15,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:28:15,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:28:15,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:28:15,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:28:15,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:28:15,358 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 18:28:15,359 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 18:28:15,359 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 18:28:15,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:28:15,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:28:15,360 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:28:15,361 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:28:15,372 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:28:15,372 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:28:15,373 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:28:15,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:28:15,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:28:15,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:28:15,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:28:15,376 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:28:15,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:28:15,377 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_1718f635-1f29-4acd-8403-d6cfed21104a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 [2023-11-21 18:28:15,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:28:15,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:28:15,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:28:15,806 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:28:15,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:28:15,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2023-11-21 18:28:19,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:28:19,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:28:19,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2023-11-21 18:28:19,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/data/e283188a0/e79fdb1ca352409388f46b376549057a/FLAG38f44aff2 [2023-11-21 18:28:19,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/data/e283188a0/e79fdb1ca352409388f46b376549057a [2023-11-21 18:28:19,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:28:19,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:28:19,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:28:19,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:28:19,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:28:19,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cecf465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19, skipping insertion in model container [2023-11-21 18:28:19,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:28:19,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:28:19,750 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:28:19,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:28:19,795 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:28:19,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19 WrapperNode [2023-11-21 18:28:19,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:28:19,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:28:19,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:28:19,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:28:19,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,836 INFO L138 Inliner]: procedures = 13, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28 [2023-11-21 18:28:19,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:28:19,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:28:19,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:28:19,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:28:19,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:28:19,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:28:19,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:28:19,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:28:19,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:28:19" (1/1) ... [2023-11-21 18:28:19,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:28:19,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:28:19,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:28:19,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:28:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:28:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:28:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:28:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:28:19,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:28:19,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:28:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:28:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:28:20,039 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:28:20,042 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:28:20,211 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:28:20,242 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:28:20,242 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:28:20,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:20 BoogieIcfgContainer [2023-11-21 18:28:20,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:28:20,246 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:28:20,246 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:28:20,260 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:28:20,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:20" (1/1) ... [2023-11-21 18:28:20,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:28:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-21 18:28:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-21 18:28:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:28:20,353 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:20,707 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 18:28:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-21 18:28:20,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-21 18:28:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:28:20,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:20,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:20,953 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 18:28:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-21 18:28:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-21 18:28:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:28:21,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:21,089 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 18:28:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:21,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 18:28:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 18:28:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:28:21,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:21,263 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 18:28:21,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:21,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-21 18:28:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-21 18:28:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:28:21,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:21,608 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 18:28:21,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:21,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2023-11-21 18:28:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-21 18:28:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:28:21,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:28:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:28:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:28:22,039 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 18:28:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:28:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2023-11-21 18:28:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2023-11-21 18:28:22,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:28:22,613 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-21 18:28:22,623 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-11-21 18:28:22,666 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-21 18:28:22,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:28:22 ImpRootNode [2023-11-21 18:28:22,673 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:28:22,674 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:28:22,675 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:28:22,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:28:22,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:28:20" (3/4) ... [2023-11-21 18:28:22,682 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:28:22,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-21 18:28:22,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-21 18:28:22,695 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:28:22,695 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:28:22,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:28:22,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:28:22,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:28:22,818 INFO L158 Benchmark]: Toolchain (without parser) took 3289.75ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 112.5MB in the beginning and 99.8MB in the end (delta: 12.7MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,818 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 159.4MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:28:22,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.14ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 102.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.64ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,820 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 159.4MB. Free memory was 100.6MB in the beginning and 99.6MB in the end (delta: 915.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:28:22,821 INFO L158 Benchmark]: RCFGBuilder took 378.61ms. Allocated memory is still 159.4MB. Free memory was 99.4MB in the beginning and 88.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,821 INFO L158 Benchmark]: CodeCheck took 2427.35ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 88.9MB in the beginning and 103.8MB in the end (delta: -14.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,822 INFO L158 Benchmark]: Witness Printer took 142.50ms. Allocated memory is still 192.9MB. Free memory was 103.8MB in the beginning and 99.8MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:28:22,825 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, 14 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 2 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 27]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 159.4MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.14ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 102.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.64ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 100.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 159.4MB. Free memory was 100.6MB in the beginning and 99.6MB in the end (delta: 915.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 378.61ms. Allocated memory is still 159.4MB. Free memory was 99.4MB in the beginning and 88.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2427.35ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 88.9MB in the beginning and 103.8MB in the end (delta: -14.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 142.50ms. Allocated memory is still 192.9MB. Free memory was 103.8MB in the beginning and 99.8MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:28:22,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1718f635-1f29-4acd-8403-d6cfed21104a/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