./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test26-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test26-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL --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 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:37:51,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:37:51,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 02:37:51,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:37:51,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:37:51,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:37:51,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:37:51,324 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:37:51,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:37:51,330 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:37:51,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:37:51,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:37:51,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:37:51,333 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:37:51,334 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:37:51,334 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:37:51,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:37:51,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:37:51,335 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:37:51,336 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:37:51,336 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:37:51,337 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:37:51,337 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:37:51,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:37:51,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:51,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:37:51,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:37:51,340 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:37:51,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:37:51,340 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_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 [2023-11-19 02:37:51,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:37:51,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:37:51,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:37:51,672 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:37:51,673 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:37:51,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-regression/test26-1.c [2023-11-19 02:37:54,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:37:54,908 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:37:54,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/sv-benchmarks/c/ldv-regression/test26-1.c [2023-11-19 02:37:54,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/data/7b71e1b8f/5f635585ae4f4be481fba2d3b205dcb7/FLAGb1e80a06d [2023-11-19 02:37:54,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/data/7b71e1b8f/5f635585ae4f4be481fba2d3b205dcb7 [2023-11-19 02:37:54,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:37:54,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:37:54,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:54,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:37:54,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:37:54,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:54" (1/1) ... [2023-11-19 02:37:54,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a96f3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:54, skipping insertion in model container [2023-11-19 02:37:54,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:37:54" (1/1) ... [2023-11-19 02:37:54,962 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:37:55,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:55,145 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:37:55,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:37:55,183 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:37:55,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55 WrapperNode [2023-11-19 02:37:55,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:37:55,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:55,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:37:55,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:37:55,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,218 INFO L138 Inliner]: procedures = 12, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2023-11-19 02:37:55,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:37:55,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:37:55,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:37:55,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:37:55,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:37:55,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:37:55,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:37:55,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:37:55,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:37:55,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:37:55,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:37:55,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:37:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:37:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:37:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:37:55,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:37:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:37:55,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:37:55,409 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:37:55,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:37:55,618 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:37:55,644 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:37:55,648 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:37:55,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:55 BoogieIcfgContainer [2023-11-19 02:37:55,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:37:55,654 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:37:55,654 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:37:55,664 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:37:55,665 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:55" (1/1) ... [2023-11-19 02:37:55,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:37:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-11-19 02:37:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-11-19 02:37:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:37:55,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:55,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-11-19 02:37:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-11-19 02:37:56,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:37:56,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-19 02:37:56,441 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-19 02:37:56,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:37:56,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:56,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-19 02:37:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-19 02:37:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:37:56,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-19 02:37:57,192 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-19 02:37:57,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:37:57,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:57,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:57,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-19 02:37:57,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-19 02:37:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:37:57,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:57,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:58,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-19 02:37:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-19 02:37:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:37:58,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:37:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:37:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 02:37:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 02:37:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:37:59,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:37:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:37:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:37:59,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:00,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 02:38:00,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 02:38:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:38:00,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:00,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2023-11-19 02:38:02,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-11-19 02:38:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:38:02,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:02,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2023-11-19 02:38:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-19 02:38:04,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:38:04,575 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-11-19 02:38:04,588 INFO L751 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2023-11-19 02:38:04,668 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-19 02:38:04,673 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2023-11-19 02:38:04,676 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 02:38:04,677 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 02:38:04,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:38:04 ImpRootNode [2023-11-19 02:38:04,678 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:38:04,679 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:38:04,680 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:38:04,680 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:38:04,681 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:37:55" (3/4) ... [2023-11-19 02:38:04,685 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:38:04,697 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 02:38:04,698 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 02:38:04,698 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:38:04,699 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:38:04,831 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:38:04,831 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:38:04,832 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:38:04,833 INFO L158 Benchmark]: Toolchain (without parser) took 9898.54ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 122.6MB in the beginning and 110.3MB in the end (delta: 12.4MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,833 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:04,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.23ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 112.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.55ms. Allocated memory is still 155.2MB. Free memory was 112.2MB in the beginning and 110.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,842 INFO L158 Benchmark]: Boogie Preprocessor took 21.71ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 109.7MB in the end (delta: 896.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:04,843 INFO L158 Benchmark]: RCFGBuilder took 411.35ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 98.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,844 INFO L158 Benchmark]: CodeCheck took 9025.08ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 97.6MB in the beginning and 114.5MB in the end (delta: -16.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,845 INFO L158 Benchmark]: Witness Printer took 152.61ms. Allocated memory is still 195.0MB. Free memory was 114.5MB in the beginning and 110.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:38:04,848 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: 8.9s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 855 IncrementalHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 2 mSDtfsCounter, 855 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 382 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7329 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 239 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: -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: 14]: 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: 14]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 20]: 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 155.2MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.23ms. Allocated memory is still 155.2MB. Free memory was 122.2MB in the beginning and 112.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.55ms. Allocated memory is still 155.2MB. Free memory was 112.2MB in the beginning and 110.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.71ms. Allocated memory is still 155.2MB. Free memory was 110.6MB in the beginning and 109.7MB in the end (delta: 896.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.35ms. Allocated memory is still 155.2MB. Free memory was 109.7MB in the beginning and 98.0MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 9025.08ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 97.6MB in the beginning and 114.5MB in the end (delta: -16.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 152.61ms. Allocated memory is still 195.0MB. Free memory was 114.5MB in the beginning and 110.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated RESULT: Ultimate proved your program to be correct! [2023-11-19 02:38:04,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a57be1a-5db8-4b64-9dff-b21c8e652553/bin/ukojak-verify-G8NBE6pJGL/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