./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.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_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:26,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:26,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 12:03:26,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:26,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:26,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:26,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:26,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:26,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:26,417 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:26,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:26,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:26,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:26,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:26,422 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:26,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:26,423 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:26,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:26,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:26,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:26,424 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:03:26,425 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:03:26,425 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:03:26,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:26,426 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:03:26,427 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:03:26,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:26,428 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:26,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:26,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:26,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:26,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:26,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:26,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:26,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:26,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:26,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:03:26,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:26,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:26,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:26,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:26,441 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2023-11-26 12:03:26,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:26,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:26,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:26,839 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:26,840 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:26,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:30,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:30,394 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:30,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:30,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/82baee4b5/11479e39ae714888a8ac10b653c95657/FLAG08f1ab7d4 [2023-11-26 12:03:30,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/82baee4b5/11479e39ae714888a8ac10b653c95657 [2023-11-26 12:03:30,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:30,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:30,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:30,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:30,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:30,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:30" (1/1) ... [2023-11-26 12:03:30,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40370c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:30, skipping insertion in model container [2023-11-26 12:03:30,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:30" (1/1) ... [2023-11-26 12:03:30,494 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:30,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:30,944 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:31,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:31,085 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:31,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31 WrapperNode [2023-11-26 12:03:31,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:31,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:31,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:31,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:31,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,216 INFO L138 Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-26 12:03:31,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:31,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:31,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:31,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:31,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,259 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 2, 5]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0]. [2023-11-26 12:03:31,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:31,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:31,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:31,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:31,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (1/1) ... [2023-11-26 12:03:31,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:31,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:31,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:31,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:03:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:03:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:03:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:03:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 12:03:31,364 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 12:03:31,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:03:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:03:31,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:03:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:03:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:03:31,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:31,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:31,368 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:03:31,582 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:31,585 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:31,794 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:31,961 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:31,961 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:03:31,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:31 BoogieIcfgContainer [2023-11-26 12:03:31,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:31,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:31,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:31,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:31,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:30" (1/3) ... [2023-11-26 12:03:31,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d18459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:31, skipping insertion in model container [2023-11-26 12:03:31,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:31" (2/3) ... [2023-11-26 12:03:31,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d18459b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:31, skipping insertion in model container [2023-11-26 12:03:31,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:31" (3/3) ... [2023-11-26 12:03:31,971 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:31,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:31,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 12:03:31,992 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:03:32,039 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 12:03:32,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 39 transitions, 85 flow [2023-11-26 12:03:32,107 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-26 12:03:32,107 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:32,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-11-26 12:03:32,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 39 transitions, 85 flow [2023-11-26 12:03:32,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 37 transitions, 80 flow [2023-11-26 12:03:32,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:32,146 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72c83f84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:32,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-26 12:03:32,161 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:03:32,162 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-26 12:03:32,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:32,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:32,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 12:03:32,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:32,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,169 INFO L85 PathProgramCache]: Analyzing trace with hash 7502, now seen corresponding path program 1 times [2023-11-26 12:03:32,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791278698] [2023-11-26 12:03:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:32,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:32,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791278698] [2023-11-26 12:03:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791278698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:32,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:03:32,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685201693] [2023-11-26 12:03:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:32,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:32,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:32,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:03:32,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:32,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:32,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:03:32,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:32,732 INFO L124 PetriNetUnfolderBase]: 63/184 cut-off events. [2023-11-26 12:03:32,732 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:32,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 184 events. 63/184 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 685 event pairs, 63 based on Foata normal form. 20/201 useless extension candidates. Maximal degree in co-relation 319. Up to 146 conditions per place. [2023-11-26 12:03:32,737 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 19 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2023-11-26 12:03:32,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 112 flow [2023-11-26 12:03:32,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:32,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2023-11-26 12:03:32,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5213675213675214 [2023-11-26 12:03:32,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 61 transitions. [2023-11-26 12:03:32,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 61 transitions. [2023-11-26 12:03:32,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:32,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 61 transitions. [2023-11-26 12:03:32,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:32,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:32,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:32,766 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 80 flow. Second operand 3 states and 61 transitions. [2023-11-26 12:03:32,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 112 flow [2023-11-26 12:03:32,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:32,799 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 70 flow [2023-11-26 12:03:32,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2023-11-26 12:03:32,806 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-11-26 12:03:32,806 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 70 flow [2023-11-26 12:03:32,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:32,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:32,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 12:03:32,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:32,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:32,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:32,809 INFO L85 PathProgramCache]: Analyzing trace with hash 7503, now seen corresponding path program 1 times [2023-11-26 12:03:32,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:32,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281227572] [2023-11-26 12:03:32,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:32,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281227572] [2023-11-26 12:03:33,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281227572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:33,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:33,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:03:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013409259] [2023-11-26 12:03:33,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:33,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:33,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:33,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:33,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:33,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2023-11-26 12:03:33,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:33,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2023-11-26 12:03:33,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:33,115 INFO L124 PetriNetUnfolderBase]: 54/162 cut-off events. [2023-11-26 12:03:33,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:33,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 162 events. 54/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 573 event pairs, 54 based on Foata normal form. 10/170 useless extension candidates. Maximal degree in co-relation 285. Up to 126 conditions per place. [2023-11-26 12:03:33,119 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 17 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-11-26 12:03:33,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 104 flow [2023-11-26 12:03:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:33,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2023-11-26 12:03:33,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2023-11-26 12:03:33,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 63 transitions. [2023-11-26 12:03:33,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 63 transitions. [2023-11-26 12:03:33,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:33,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 63 transitions. [2023-11-26 12:03:33,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,126 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 70 flow. Second operand 3 states and 63 transitions. [2023-11-26 12:03:33,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 104 flow [2023-11-26 12:03:33,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:33,129 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 66 flow [2023-11-26 12:03:33,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-11-26 12:03:33,130 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2023-11-26 12:03:33,130 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 66 flow [2023-11-26 12:03:33,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:33,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:33,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:33,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:33,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:33,133 INFO L85 PathProgramCache]: Analyzing trace with hash 108401041, now seen corresponding path program 1 times [2023-11-26 12:03:33,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:33,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451023820] [2023-11-26 12:03:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:33,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:33,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:33,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451023820] [2023-11-26 12:03:33,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451023820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:33,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:33,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88448342] [2023-11-26 12:03:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:33,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:03:33,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:33,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:33,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:33,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2023-11-26 12:03:33,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:33,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2023-11-26 12:03:33,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:33,391 INFO L124 PetriNetUnfolderBase]: 66/185 cut-off events. [2023-11-26 12:03:33,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:33,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 185 events. 66/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 692 event pairs, 28 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 334. Up to 74 conditions per place. [2023-11-26 12:03:33,394 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 28 selfloop transitions, 10 changer transitions 0/48 dead transitions. [2023-11-26 12:03:33,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 178 flow [2023-11-26 12:03:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:03:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:03:33,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2023-11-26 12:03:33,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5897435897435898 [2023-11-26 12:03:33,397 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 115 transitions. [2023-11-26 12:03:33,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 115 transitions. [2023-11-26 12:03:33,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:33,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 115 transitions. [2023-11-26 12:03:33,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,401 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,401 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 66 flow. Second operand 5 states and 115 transitions. [2023-11-26 12:03:33,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 178 flow [2023-11-26 12:03:33,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 48 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:33,404 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 124 flow [2023-11-26 12:03:33,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2023-11-26 12:03:33,405 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-11-26 12:03:33,406 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 124 flow [2023-11-26 12:03:33,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:33,406 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:33,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:03:33,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:33,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:33,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1771858432, now seen corresponding path program 1 times [2023-11-26 12:03:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:33,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442900428] [2023-11-26 12:03:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:33,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:33,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:33,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442900428] [2023-11-26 12:03:33,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442900428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:33,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:33,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:33,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814857731] [2023-11-26 12:03:33,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:33,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:33,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:33,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:33,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:33,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2023-11-26 12:03:33,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:33,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2023-11-26 12:03:33,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:33,617 INFO L124 PetriNetUnfolderBase]: 26/107 cut-off events. [2023-11-26 12:03:33,617 INFO L125 PetriNetUnfolderBase]: For 31/34 co-relation queries the response was YES. [2023-11-26 12:03:33,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 107 events. 26/107 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 315 event pairs, 9 based on Foata normal form. 11/114 useless extension candidates. Maximal degree in co-relation 236. Up to 44 conditions per place. [2023-11-26 12:03:33,621 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 21 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2023-11-26 12:03:33,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 184 flow [2023-11-26 12:03:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-26 12:03:33,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6581196581196581 [2023-11-26 12:03:33,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2023-11-26 12:03:33,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2023-11-26 12:03:33,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:33,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2023-11-26 12:03:33,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,632 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 124 flow. Second operand 3 states and 77 transitions. [2023-11-26 12:03:33,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 184 flow [2023-11-26 12:03:33,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 178 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-26 12:03:33,636 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 129 flow [2023-11-26 12:03:33,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-11-26 12:03:33,638 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2023-11-26 12:03:33,639 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 129 flow [2023-11-26 12:03:33,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:33,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:33,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:03:33,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:33,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:33,642 INFO L85 PathProgramCache]: Analyzing trace with hash 946778164, now seen corresponding path program 1 times [2023-11-26 12:03:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:33,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035556565] [2023-11-26 12:03:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:33,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:33,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:03:33,742 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:03:33,743 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-26 12:03:33,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-26 12:03:33,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-26 12:03:33,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-26 12:03:33,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-26 12:03:33,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-26 12:03:33,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-26 12:03:33,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:03:33,753 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 12:03:33,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 12:03:33,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:33,798 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-26 12:03:33,799 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-26 12:03:33,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-26 12:03:33,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:33 BasicIcfg [2023-11-26 12:03:33,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:33,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:33,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:33,810 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:33,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:31" (3/4) ... [2023-11-26 12:03:33,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:03:33,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:33,815 INFO L158 Benchmark]: Toolchain (without parser) took 3386.41ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 126.0MB in the beginning and 88.6MB in the end (delta: 37.4MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2023-11-26 12:03:33,816 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:33,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.24ms. Allocated memory is still 159.4MB. Free memory was 126.0MB in the beginning and 106.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:03:33,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.35ms. Allocated memory is still 159.4MB. Free memory was 106.5MB in the beginning and 128.1MB in the end (delta: -21.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:03:33,818 INFO L158 Benchmark]: Boogie Preprocessor took 59.36ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 125.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:33,818 INFO L158 Benchmark]: RCFGBuilder took 684.29ms. Allocated memory is still 159.4MB. Free memory was 125.4MB in the beginning and 99.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-26 12:03:33,819 INFO L158 Benchmark]: TraceAbstraction took 1844.03ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 98.2MB in the beginning and 88.6MB in the end (delta: 9.5MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2023-11-26 12:03:33,820 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 192.9MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:33,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.24ms. Allocated memory is still 159.4MB. Free memory was 126.0MB in the beginning and 106.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.35ms. Allocated memory is still 159.4MB. Free memory was 106.5MB in the beginning and 128.1MB in the end (delta: -21.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.36ms. Allocated memory is still 159.4MB. Free memory was 128.1MB in the beginning and 125.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 684.29ms. Allocated memory is still 159.4MB. Free memory was 125.4MB in the beginning and 99.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1844.03ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 98.2MB in the beginning and 88.6MB in the end (delta: 9.5MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 192.9MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 53 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:03:33,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:36,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:36,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 12:03:36,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:36,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:36,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:36,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:36,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:36,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:36,980 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:36,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:36,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:36,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:36,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:36,984 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:36,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:36,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:36,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:36,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:36,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:36,988 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:03:36,989 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:03:36,990 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:03:36,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:36,991 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:03:36,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:03:36,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:03:36,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:03:36,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:36,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:36,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:36,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:36,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:36,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:36,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:36,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:36,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:36,999 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:03:36,999 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:03:37,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:37,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:37,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:37,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:37,002 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:03:37,003 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2023-11-26 12:03:37,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:37,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:37,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:37,483 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:37,484 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:37,485 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:40,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:41,216 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:41,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:41,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/82390e57b/b31bbc5d37cd48daa651b0c0f5d8fd71/FLAG4d75e9914 [2023-11-26 12:03:41,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/data/82390e57b/b31bbc5d37cd48daa651b0c0f5d8fd71 [2023-11-26 12:03:41,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:41,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:41,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:41,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:41,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:41,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:41" (1/1) ... [2023-11-26 12:03:41,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b77ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:41, skipping insertion in model container [2023-11-26 12:03:41,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:41" (1/1) ... [2023-11-26 12:03:41,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:41,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:41,897 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:41,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:42,057 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:42,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42 WrapperNode [2023-11-26 12:03:42,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:42,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:42,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:42,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:42,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,133 INFO L138 Inliner]: procedures = 167, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-26 12:03:42,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:42,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:42,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:42,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:42,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,179 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2023-11-26 12:03:42,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:42,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:42,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:42,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:42,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (1/1) ... [2023-11-26 12:03:42,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:42,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:42,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:42,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:03:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:03:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:03:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:03:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:03:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 12:03:42,299 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 12:03:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:42,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:03:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:03:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:03:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:03:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:03:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:03:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:03:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:03:42,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-26 12:03:42,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-26 12:03:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-26 12:03:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-26 12:03:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:03:42,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:42,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:42,309 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:03:42,486 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:42,489 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:42,714 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:42,976 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:42,976 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:03:42,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:42 BoogieIcfgContainer [2023-11-26 12:03:42,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:42,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:42,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:42,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:42,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:41" (1/3) ... [2023-11-26 12:03:42,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1f7e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:42, skipping insertion in model container [2023-11-26 12:03:42,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:42" (2/3) ... [2023-11-26 12:03:42,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1f7e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:42, skipping insertion in model container [2023-11-26 12:03:42,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:42" (3/3) ... [2023-11-26 12:03:42,986 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2023-11-26 12:03:43,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:43,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 12:03:43,010 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:03:43,074 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 12:03:43,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 39 transitions, 85 flow [2023-11-26 12:03:43,162 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-26 12:03:43,162 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:43,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-11-26 12:03:43,166 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 39 transitions, 85 flow [2023-11-26 12:03:43,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 37 transitions, 80 flow [2023-11-26 12:03:43,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:43,200 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@748362bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:43,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-26 12:03:43,205 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:03:43,205 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-26 12:03:43,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:43,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:43,206 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 12:03:43,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:43,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash 7566, now seen corresponding path program 1 times [2023-11-26 12:03:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003719668] [2023-11-26 12:03:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:43,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:43,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:43,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:03:43,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:03:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:43,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:03:43,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:43,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-26 12:03:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:43,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:43,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:43,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003719668] [2023-11-26 12:03:43,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003719668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:43,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:43,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:03:43,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425837270] [2023-11-26 12:03:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:43,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:43,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:43,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2023-11-26 12:03:43,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:43,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:43,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2023-11-26 12:03:43,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:43,751 INFO L124 PetriNetUnfolderBase]: 63/184 cut-off events. [2023-11-26 12:03:43,752 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:43,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 184 events. 63/184 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 685 event pairs, 63 based on Foata normal form. 20/201 useless extension candidates. Maximal degree in co-relation 319. Up to 146 conditions per place. [2023-11-26 12:03:43,759 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 19 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2023-11-26 12:03:43,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 112 flow [2023-11-26 12:03:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2023-11-26 12:03:43,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5213675213675214 [2023-11-26 12:03:43,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 61 transitions. [2023-11-26 12:03:43,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 61 transitions. [2023-11-26 12:03:43,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:43,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 61 transitions. [2023-11-26 12:03:43,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:43,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:43,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:43,794 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 80 flow. Second operand 3 states and 61 transitions. [2023-11-26 12:03:43,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 112 flow [2023-11-26 12:03:43,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:43,802 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 70 flow [2023-11-26 12:03:43,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2023-11-26 12:03:43,809 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -3 predicate places. [2023-11-26 12:03:43,809 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 70 flow [2023-11-26 12:03:43,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:43,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:43,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 12:03:43,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:44,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:44,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:44,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 7567, now seen corresponding path program 1 times [2023-11-26 12:03:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:44,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058519906] [2023-11-26 12:03:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:44,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:44,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:44,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:03:44,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:03:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:44,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:03:44,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:44,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 12:03:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:44,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:44,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:44,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058519906] [2023-11-26 12:03:44,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058519906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:44,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:44,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:03:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158902107] [2023-11-26 12:03:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:44,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:44,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2023-11-26 12:03:44,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:44,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2023-11-26 12:03:44,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:44,307 INFO L124 PetriNetUnfolderBase]: 54/162 cut-off events. [2023-11-26 12:03:44,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:44,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 162 events. 54/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 573 event pairs, 54 based on Foata normal form. 10/170 useless extension candidates. Maximal degree in co-relation 285. Up to 126 conditions per place. [2023-11-26 12:03:44,309 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 17 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2023-11-26 12:03:44,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 104 flow [2023-11-26 12:03:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2023-11-26 12:03:44,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2023-11-26 12:03:44,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 63 transitions. [2023-11-26 12:03:44,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 63 transitions. [2023-11-26 12:03:44,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:44,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 63 transitions. [2023-11-26 12:03:44,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,316 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 70 flow. Second operand 3 states and 63 transitions. [2023-11-26 12:03:44,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 104 flow [2023-11-26 12:03:44,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:44,319 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 66 flow [2023-11-26 12:03:44,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-11-26 12:03:44,320 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -5 predicate places. [2023-11-26 12:03:44,320 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 66 flow [2023-11-26 12:03:44,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:44,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:44,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:44,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:44,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:44,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1813287059, now seen corresponding path program 1 times [2023-11-26 12:03:44,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:44,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528394991] [2023-11-26 12:03:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:44,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:44,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:44,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:03:44,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 12:03:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:44,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:03:44,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:44,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:44,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:44,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528394991] [2023-11-26 12:03:44,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528394991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:44,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:44,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:44,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101717456] [2023-11-26 12:03:44,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:44,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:03:44,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:44,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:03:44,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:03:44,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2023-11-26 12:03:44,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:44,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2023-11-26 12:03:44,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:44,855 INFO L124 PetriNetUnfolderBase]: 57/175 cut-off events. [2023-11-26 12:03:44,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:44,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 175 events. 57/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 672 event pairs, 28 based on Foata normal form. 10/183 useless extension candidates. Maximal degree in co-relation 305. Up to 78 conditions per place. [2023-11-26 12:03:44,858 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 28 selfloop transitions, 8 changer transitions 0/47 dead transitions. [2023-11-26 12:03:44,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 172 flow [2023-11-26 12:03:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:03:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:03:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2023-11-26 12:03:44,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6051282051282051 [2023-11-26 12:03:44,861 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 118 transitions. [2023-11-26 12:03:44,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 118 transitions. [2023-11-26 12:03:44,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:44,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 118 transitions. [2023-11-26 12:03:44,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,865 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,865 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 66 flow. Second operand 5 states and 118 transitions. [2023-11-26 12:03:44,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 172 flow [2023-11-26 12:03:44,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:44,868 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 110 flow [2023-11-26 12:03:44,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2023-11-26 12:03:44,870 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-26 12:03:44,870 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 110 flow [2023-11-26 12:03:44,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:44,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:44,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:44,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-26 12:03:45,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:45,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:45,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:45,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1849943104, now seen corresponding path program 1 times [2023-11-26 12:03:45,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:45,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304705987] [2023-11-26 12:03:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:45,075 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:45,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:45,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:03:45,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 12:03:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:45,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:03:45,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:03:45,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-26 12:03:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:45,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:03:45,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:03:45,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304705987] [2023-11-26 12:03:45,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304705987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031268817] [2023-11-26 12:03:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:45,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:03:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:45,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:45,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2023-11-26 12:03:45,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:45,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:45,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2023-11-26 12:03:45,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:45,281 INFO L124 PetriNetUnfolderBase]: 26/107 cut-off events. [2023-11-26 12:03:45,281 INFO L125 PetriNetUnfolderBase]: For 40/41 co-relation queries the response was YES. [2023-11-26 12:03:45,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 107 events. 26/107 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs, 9 based on Foata normal form. 11/114 useless extension candidates. Maximal degree in co-relation 223. Up to 44 conditions per place. [2023-11-26 12:03:45,283 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 21 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2023-11-26 12:03:45,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 39 transitions, 171 flow [2023-11-26 12:03:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-26 12:03:45,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6581196581196581 [2023-11-26 12:03:45,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 77 transitions. [2023-11-26 12:03:45,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 77 transitions. [2023-11-26 12:03:45,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:45,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 77 transitions. [2023-11-26 12:03:45,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:45,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:45,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:45,288 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 110 flow. Second operand 3 states and 77 transitions. [2023-11-26 12:03:45,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 39 transitions, 171 flow [2023-11-26 12:03:45,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 39 transitions, 164 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:45,291 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 115 flow [2023-11-26 12:03:45,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2023-11-26 12:03:45,292 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-11-26 12:03:45,293 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 115 flow [2023-11-26 12:03:45,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:45,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:45,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:45,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:45,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:45,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2023-11-26 12:03:45,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:45,497 INFO L85 PathProgramCache]: Analyzing trace with hash 340080246, now seen corresponding path program 1 times [2023-11-26 12:03:45,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:03:45,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216536523] [2023-11-26 12:03:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:45,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:03:45,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:03:45,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-26 12:03:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:45,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:03:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:03:45,703 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 12:03:45,703 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:03:45,704 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-11-26 12:03:45,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-11-26 12:03:45,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-11-26 12:03:45,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-11-26 12:03:45,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-11-26 12:03:45,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (1 of 7 remaining) [2023-11-26 12:03:45,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2023-11-26 12:03:45,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:03:45,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:03:45,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 12:03:45,915 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 12:03:45,915 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:45,935 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-26 12:03:45,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-26 12:03:45,940 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-26 12:03:45,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:45 BasicIcfg [2023-11-26 12:03:45,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:45,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:45,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:45,954 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:45,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:42" (3/4) ... [2023-11-26 12:03:45,957 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:03:45,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:45,960 INFO L158 Benchmark]: Toolchain (without parser) took 4703.04ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 43.8MB in the beginning and 79.5MB in the end (delta: -35.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,960 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:45,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.04ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 63.1MB in the end (delta: -19.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.33ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 61.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,963 INFO L158 Benchmark]: Boogie Preprocessor took 65.36ms. Allocated memory is still 92.3MB. Free memory was 61.4MB in the beginning and 58.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,963 INFO L158 Benchmark]: RCFGBuilder took 775.70ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 58.9MB in the end (delta: -527.1kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,964 INFO L158 Benchmark]: TraceAbstraction took 2974.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.8MB in the beginning and 80.4MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:45,964 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 111.1MB. Free memory was 80.4MB in the beginning and 79.5MB in the end (delta: 872.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:45,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 69.2MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.04ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 63.1MB in the end (delta: -19.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.33ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 61.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.36ms. Allocated memory is still 92.3MB. Free memory was 61.4MB in the beginning and 58.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 775.70ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 58.9MB in the end (delta: -527.1kB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2974.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.8MB in the beginning and 80.4MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 111.1MB. Free memory was 80.4MB in the beginning and 79.5MB in the end (delta: 872.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={7:0}, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L18] 0 __assert_fail ("0", "13-privatized_19-publish-precision_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 53 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 2 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:03:46,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e73488-cb22-4138-9b3c-7174a9005b23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: UNKNOWN: Overapproximated counterexample