./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/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_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/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_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:35:16,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:35:16,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-03 03:35:16,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:35:16,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:35:16,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:35:16,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:35:16,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:35:16,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:35:16,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:35:16,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:35:16,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:35:16,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:35:16,922 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 03:35:16,923 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 03:35:16,923 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-03 03:35:16,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:35:16,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:35:16,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:35:16,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:35:16,925 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:35:16,926 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:35:16,927 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:35:16,927 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:35:16,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:35:16,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:35:16,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:35:16,929 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:35:16,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:35:16,930 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_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2023-12-03 03:35:17,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:35:17,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:35:17,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:35:17,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:35:17,152 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:35:17,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2023-12-03 03:35:19,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:35:19,977 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:35:19,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/sv-benchmarks/c/verifythis/elimination_max_rec.c [2023-12-03 03:35:19,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/data/08c486a64/9b0ebafaa12342d2b603185f97e2c245/FLAGf6083adea [2023-12-03 03:35:19,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/data/08c486a64/9b0ebafaa12342d2b603185f97e2c245 [2023-12-03 03:35:19,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:35:19,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:35:19,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:35:19,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:35:20,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:35:20,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:35:19" (1/1) ... [2023-12-03 03:35:20,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469da9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20, skipping insertion in model container [2023-12-03 03:35:20,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:35:19" (1/1) ... [2023-12-03 03:35:20,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:35:20,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:35:20,165 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:35:20,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:35:20,194 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:35:20,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20 WrapperNode [2023-12-03 03:35:20,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:35:20,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:35:20,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:35:20,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:35:20,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,233 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 85 [2023-12-03 03:35:20,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:35:20,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:35:20,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:35:20,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:35:20,241 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:35:20,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:35:20,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:35:20,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:35:20,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:35:20,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:35:20,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:35:20,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:35:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:35:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:35:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-12-03 03:35:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-12-03 03:35:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 03:35:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:35:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:35:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 03:35:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:35:20,425 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:35:20,428 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:35:20,625 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:35:20,683 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:35:20,683 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:35:20,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:20 BoogieIcfgContainer [2023-12-03 03:35:20,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:35:20,686 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:35:20,686 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:35:20,696 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:35:20,696 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:20" (1/1) ... [2023-12-03 03:35:20,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:35:20,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 38 states and 41 transitions. [2023-12-03 03:35:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2023-12-03 03:35:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:35:20,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:20,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:21,133 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 03:35:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 41 states and 45 transitions. [2023-12-03 03:35:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2023-12-03 03:35:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:35:21,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:21,343 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 03:35:21,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 53 transitions. [2023-12-03 03:35:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-12-03 03:35:21,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:35:21,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:21,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:22,023 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 03:35:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 61 transitions. [2023-12-03 03:35:23,054 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2023-12-03 03:35:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:35:23,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:23,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:23,115 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 03:35:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 60 transitions. [2023-12-03 03:35:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-12-03 03:35:23,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:35:23,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:23,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:23,185 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 03:35:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 59 transitions. [2023-12-03 03:35:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2023-12-03 03:35:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:35:23,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:23,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:23,724 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 03:35:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 64 transitions. [2023-12-03 03:35:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-12-03 03:35:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 03:35:24,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:24,771 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 03:35:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 63 transitions. [2023-12-03 03:35:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2023-12-03 03:35:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:35:25,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:25,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:25,322 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 03:35:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 62 transitions. [2023-12-03 03:35:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2023-12-03 03:35:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:35:25,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:25,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:25,887 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 03:35:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 61 transitions. [2023-12-03 03:35:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2023-12-03 03:35:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:35:26,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:26,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 76 transitions. [2023-12-03 03:35:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-12-03 03:35:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:35:30,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:30,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:30,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 75 transitions. [2023-12-03 03:35:30,973 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-12-03 03:35:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:35:30,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:33,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:33,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 65 states and 86 transitions. [2023-12-03 03:35:33,840 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2023-12-03 03:35:33,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:35:33,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:33,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:35:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 67 states and 89 transitions. [2023-12-03 03:35:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2023-12-03 03:35:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:35:33,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:33,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 70 states and 98 transitions. [2023-12-03 03:35:37,017 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2023-12-03 03:35:37,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:35:37,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:37,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 73 states and 101 transitions. [2023-12-03 03:35:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2023-12-03 03:35:38,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 03:35:38,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:38,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 03:35:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 72 states and 100 transitions. [2023-12-03 03:35:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2023-12-03 03:35:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 03:35:38,701 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:38,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 78 states and 130 transitions. [2023-12-03 03:35:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 130 transitions. [2023-12-03 03:35:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 03:35:43,188 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 88 states and 153 transitions. [2023-12-03 03:35:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 153 transitions. [2023-12-03 03:35:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:35:49,707 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:35:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:55,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 94 states and 168 transitions. [2023-12-03 03:35:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 168 transitions. [2023-12-03 03:35:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 03:35:55,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:55,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:35:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:36:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:36:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 97 states and 185 transitions. [2023-12-03 03:36:00,482 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 185 transitions. [2023-12-03 03:36:00,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 03:36:00,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:36:00,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:36:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:36:02,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:36:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:36:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 100 states and 201 transitions. [2023-12-03 03:36:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 201 transitions. [2023-12-03 03:36:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 03:36:09,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:36:09,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:36:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:36:09,535 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 03:36:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:36:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 42 states and 54 transitions. [2023-12-03 03:36:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2023-12-03 03:36:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 03:36:15,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:36:15,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:36:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:36:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:36:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:36:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 51 states and 80 transitions. [2023-12-03 03:36:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 80 transitions. [2023-12-03 03:36:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 03:36:33,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:36:33,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:36:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:36:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 03:36:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:36:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 44 states and 58 transitions. [2023-12-03 03:36:50,576 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2023-12-03 03:36:50,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:36:50,577 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2023-12-03 03:36:50,584 INFO L751 CodeCheckObserver]: All specifications hold 14 specifications checked. All of them hold [2023-12-03 03:36:50,926 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:36:50,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:36:50 ImpRootNode [2023-12-03 03:36:50,929 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:36:50,930 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:36:50,930 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:36:50,930 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:36:50,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:35:20" (3/4) ... [2023-12-03 03:36:50,932 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:36:50,934 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2023-12-03 03:36:50,938 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-12-03 03:36:50,939 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-03 03:36:50,939 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-12-03 03:36:50,939 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:36:51,027 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:36:51,027 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:36:51,028 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:36:51,028 INFO L158 Benchmark]: Toolchain (without parser) took 91030.53ms. Allocated memory was 138.4MB in the beginning and 509.6MB in the end (delta: 371.2MB). Free memory was 92.7MB in the beginning and 343.5MB in the end (delta: -250.8MB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,029 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:36:51,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.50ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 81.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 138.4MB. Free memory was 81.8MB in the beginning and 79.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,030 INFO L158 Benchmark]: Boogie Preprocessor took 24.06ms. Allocated memory is still 138.4MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,030 INFO L158 Benchmark]: RCFGBuilder took 426.26ms. Allocated memory is still 138.4MB. Free memory was 78.7MB in the beginning and 59.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,031 INFO L158 Benchmark]: CodeCheck took 90243.74ms. Allocated memory was 138.4MB in the beginning and 509.6MB in the end (delta: 371.2MB). Free memory was 59.9MB in the beginning and 348.7MB in the end (delta: -288.8MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,031 INFO L158 Benchmark]: Witness Printer took 98.08ms. Allocated memory is still 509.6MB. Free memory was 348.7MB in the beginning and 343.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:36:51,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 38 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 89.9s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1774 SdHoareTripleChecker+Valid, 13.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1276 mSDsluCounter, 836 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 416 mSDsCounter, 1911 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8491 IncrementalHoareTripleChecker+Invalid, 10402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1911 mSolverCounterUnsat, 420 mSDtfsCounter, 8491 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4711 GetRequests, 4027 SyntacticMatches, 108 SemanticMatches, 576 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155777 ImplicationChecksByTransitivity, 83.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 3778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 12 PerfectInterpolantSequences, 25/135 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: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 48]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 41]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.50ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 81.8MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 138.4MB. Free memory was 81.8MB in the beginning and 79.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.06ms. Allocated memory is still 138.4MB. Free memory was 79.8MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.26ms. Allocated memory is still 138.4MB. Free memory was 78.7MB in the beginning and 59.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 90243.74ms. Allocated memory was 138.4MB in the beginning and 509.6MB in the end (delta: 371.2MB). Free memory was 59.9MB in the beginning and 348.7MB in the end (delta: -288.8MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. * Witness Printer took 98.08ms. Allocated memory is still 509.6MB. Free memory was 348.7MB in the beginning and 343.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:36:51,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65bc0b2a-ed40-4e42-8c08-c48caa97fefc/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