./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/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_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9 --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 be381633e08917ff7523167eb47da4558cd865b57872b34c3877295f48e457c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:55:14,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:55:14,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 00:55:14,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:55:14,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:55:14,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:55:14,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:55:14,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:55:14,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:55:14,565 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:55:14,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:55:14,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:55:14,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:55:14,567 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 00:55:14,568 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 00:55:14,568 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 00:55:14,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:55:14,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:55:14,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:55:14,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:55:14,571 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:55:14,571 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:55:14,572 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:55:14,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:55:14,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:55:14,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:55:14,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:55:14,574 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:55:14,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:55:14,575 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_400e9a64-2303-441b-8efe-dfa32897b8af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be381633e08917ff7523167eb47da4558cd865b57872b34c3877295f48e457c8 [2023-12-03 00:55:14,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:55:14,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:55:14,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:55:14,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:55:14,831 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:55:14,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/memsafety/test-0158-1.i [2023-12-03 00:55:17,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:55:17,776 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:55:17,776 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/sv-benchmarks/c/memsafety/test-0158-1.i [2023-12-03 00:55:17,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/data/f2c5ac6fe/47475219183544558089096d2ca97eb9/FLAG54a0b6b19 [2023-12-03 00:55:17,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/data/f2c5ac6fe/47475219183544558089096d2ca97eb9 [2023-12-03 00:55:17,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:55:17,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:55:17,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:55:17,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:55:17,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:55:17,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:55:17" (1/1) ... [2023-12-03 00:55:17,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fbc959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:17, skipping insertion in model container [2023-12-03 00:55:17,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:55:17" (1/1) ... [2023-12-03 00:55:17,865 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:55:18,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:55:18,153 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:55:18,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:55:18,209 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:55:18,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18 WrapperNode [2023-12-03 00:55:18,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:55:18,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:55:18,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:55:18,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:55:18,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,243 INFO L138 Inliner]: procedures = 123, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-12-03 00:55:18,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:55:18,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:55:18,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:55:18,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:55:18,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:55:18,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:55:18,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:55:18,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:55:18,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:55:18,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:55:18,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:55:18,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:55:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 00:55:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:55:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 00:55:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:55:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 00:55:18,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:55:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:55:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:55:18,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:55:18,428 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:55:18,430 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:55:18,534 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:55:18,559 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:55:18,560 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:55:18,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:55:18 BoogieIcfgContainer [2023-12-03 00:55:18,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:55:18,562 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:55:18,562 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:55:18,571 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:55:18,571 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:55:18" (1/1) ... [2023-12-03 00:55:18,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:55:18,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 19 states and 18 transitions. [2023-12-03 00:55:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2023-12-03 00:55:18,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-03 00:55:18,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 18 states and 17 transitions. [2023-12-03 00:55:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2023-12-03 00:55:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-03 00:55:18,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:18,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 17 states and 16 transitions. [2023-12-03 00:55:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-12-03 00:55:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:55:19,108 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:19,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:19,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2023-12-03 00:55:19,160 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2023-12-03 00:55:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:55:19,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:19,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2023-12-03 00:55:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2023-12-03 00:55:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:55:19,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:19,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2023-12-03 00:55:19,592 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-12-03 00:55:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 00:55:19,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:19,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:19,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2023-12-03 00:55:19,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2023-12-03 00:55:19,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 00:55:19,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:19,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2023-12-03 00:55:20,395 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-12-03 00:55:20,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 00:55:20,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2023-12-03 00:55:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2023-12-03 00:55:21,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:55:21,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:21,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2023-12-03 00:55:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-12-03 00:55:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:55:22,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:55:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:55:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:55:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:55:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:55:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2023-12-03 00:55:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-12-03 00:55:24,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:55:24,990 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-12-03 00:55:24,996 INFO L751 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2023-12-03 00:55:25,058 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-12-03 00:55:25,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:55:25 ImpRootNode [2023-12-03 00:55:25,062 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:55:25,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:55:25,063 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:55:25,063 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:55:25,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:55:18" (3/4) ... [2023-12-03 00:55:25,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:55:25,070 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 00:55:25,070 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-03 00:55:25,070 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:55:25,070 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:55:25,143 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:55:25,143 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:55:25,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:55:25,144 INFO L158 Benchmark]: Toolchain (without parser) took 7333.26ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 145.7MB in the beginning and 169.9MB in the end (delta: -24.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-12-03 00:55:25,144 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:55:25,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.71ms. Allocated memory is still 180.4MB. Free memory was 144.6MB in the beginning and 140.2MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:55:25,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.06ms. Allocated memory is still 180.4MB. Free memory was 140.2MB in the beginning and 139.2MB in the end (delta: 979.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:55:25,146 INFO L158 Benchmark]: Boogie Preprocessor took 22.17ms. Allocated memory is still 180.4MB. Free memory was 138.2MB in the beginning and 137.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:55:25,146 INFO L158 Benchmark]: RCFGBuilder took 294.14ms. Allocated memory is still 180.4MB. Free memory was 137.1MB in the beginning and 125.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 00:55:25,147 INFO L158 Benchmark]: CodeCheck took 6499.87ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 124.5MB in the beginning and 174.1MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:55:25,147 INFO L158 Benchmark]: Witness Printer took 80.73ms. Allocated memory is still 218.1MB. Free memory was 174.1MB in the beginning and 169.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:55:25,149 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, 19 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 187 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 522 IncrementalHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 187 mSolverCounterUnsat, 0 mSDtfsCounter, 522 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6308 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: -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: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: null * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.71ms. Allocated memory is still 180.4MB. Free memory was 144.6MB in the beginning and 140.2MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.06ms. Allocated memory is still 180.4MB. Free memory was 140.2MB in the beginning and 139.2MB in the end (delta: 979.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.17ms. Allocated memory is still 180.4MB. Free memory was 138.2MB in the beginning and 137.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.14ms. Allocated memory is still 180.4MB. Free memory was 137.1MB in the beginning and 125.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6499.87ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 124.5MB in the beginning and 174.1MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.73ms. Allocated memory is still 218.1MB. Free memory was 174.1MB in the beginning and 169.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:55:25,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400e9a64-2303-441b-8efe-dfa32897b8af/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