./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:37,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:37,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:07:37,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:37,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:37,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:37,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:37,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:37,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:37,405 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:37,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:37,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:37,406 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:37,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:37,407 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:37,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:37,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:37,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:37,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:37,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:37,411 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:07:37,412 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:07:37,412 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:07:37,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:37,414 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:07:37,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:37,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:37,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:37,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:37,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:37,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:37,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:07:37,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:37,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:37,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:37,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:37,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:37,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:37,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:37,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:37,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:37,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:37,420 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_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-10-31 22:07:37,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:37,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:37,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:37,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:37,852 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:37,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i Unable to find full path for "g++" [2024-10-31 22:07:40,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:40,327 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:40,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-10-31 22:07:40,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/data/2b7d151da/842a145fe64d4cb896450b121e16086c/FLAG8560430d9 [2024-10-31 22:07:40,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/data/2b7d151da/842a145fe64d4cb896450b121e16086c [2024-10-31 22:07:40,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:40,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:40,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:40,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:40,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:40,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:40" (1/1) ... [2024-10-31 22:07:40,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355cc1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:40, skipping insertion in model container [2024-10-31 22:07:40,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:40" (1/1) ... [2024-10-31 22:07:40,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:41,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:41,316 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:41,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:41,421 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:41,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41 WrapperNode [2024-10-31 22:07:41,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:41,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:41,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:41,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:41,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,472 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-10-31 22:07:41,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:41,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:41,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:41,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:41,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,504 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [3, 5, 5, 3]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [1, 5, 5, 1]. The 2 writes are split as follows [1, 0, 0, 1]. [2024-10-31 22:07:41,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:41,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:41,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:41,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:41,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (1/1) ... [2024-10-31 22:07:41,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:41,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:41,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:41,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:07:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:07:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:07:41,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:07:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:07:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:07:41,633 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:07:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:07:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:07:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:07:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:07:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:41,643 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:07:41,789 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:41,795 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:42,023 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:42,024 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:42,179 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:42,179 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:07:42,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:42 BoogieIcfgContainer [2024-10-31 22:07:42,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:42,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:42,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:42,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:42,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:40" (1/3) ... [2024-10-31 22:07:42,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1565f744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:42, skipping insertion in model container [2024-10-31 22:07:42,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:41" (2/3) ... [2024-10-31 22:07:42,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1565f744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:42, skipping insertion in model container [2024-10-31 22:07:42,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:42" (3/3) ... [2024-10-31 22:07:42,192 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-10-31 22:07:42,210 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:42,210 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-10-31 22:07:42,210 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:42,252 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:07:42,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2024-10-31 22:07:42,327 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-31 22:07:42,328 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:07:42,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 0/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 58 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 22:07:42,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2024-10-31 22:07:42,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-10-31 22:07:42,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:42,362 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@15d96094, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:42,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:07:42,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:42,370 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-10-31 22:07:42,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:42,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:42,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:42,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-31 22:07:42,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762794, now seen corresponding path program 1 times [2024-10-31 22:07:42,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979621307] [2024-10-31 22:07:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:42,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:42,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979621307] [2024-10-31 22:07:42,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979621307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:42,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:42,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:42,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041954479] [2024-10-31 22:07:42,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:42,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:42,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:42,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:42,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:42,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-10-31 22:07:42,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:42,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:42,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-10-31 22:07:42,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:43,076 INFO L124 PetriNetUnfolderBase]: 25/101 cut-off events. [2024-10-31 22:07:43,076 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:07:43,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 101 events. 25/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 364 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 156. Up to 44 conditions per place. [2024-10-31 22:07:43,083 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-10-31 22:07:43,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 102 flow [2024-10-31 22:07:43,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:43,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-10-31 22:07:43,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-10-31 22:07:43,101 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 4 states and 72 transitions. [2024-10-31 22:07:43,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 102 flow [2024-10-31 22:07:43,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:43,111 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 58 flow [2024-10-31 22:07:43,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2024-10-31 22:07:43,119 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2024-10-31 22:07:43,120 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 58 flow [2024-10-31 22:07:43,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:43,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:43,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:43,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:43,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-31 22:07:43,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253555, now seen corresponding path program 1 times [2024-10-31 22:07:43,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824166617] [2024-10-31 22:07:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:43,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:43,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824166617] [2024-10-31 22:07:43,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824166617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:43,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:43,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:43,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124136633] [2024-10-31 22:07:43,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:43,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:43,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:43,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-10-31 22:07:43,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:43,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:43,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-10-31 22:07:43,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:43,496 INFO L124 PetriNetUnfolderBase]: 25/97 cut-off events. [2024-10-31 22:07:43,496 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:07:43,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 97 events. 25/97 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 341 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 90. Up to 44 conditions per place. [2024-10-31 22:07:43,498 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-10-31 22:07:43,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 104 flow [2024-10-31 22:07:43,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:43,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-10-31 22:07:43,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-10-31 22:07:43,501 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 58 flow. Second operand 4 states and 72 transitions. [2024-10-31 22:07:43,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 104 flow [2024-10-31 22:07:43,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:07:43,503 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 54 flow [2024-10-31 22:07:43,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2024-10-31 22:07:43,507 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-10-31 22:07:43,507 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 54 flow [2024-10-31 22:07:43,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:43,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:43,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:43,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:43,508 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-31 22:07:43,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253556, now seen corresponding path program 1 times [2024-10-31 22:07:43,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468623018] [2024-10-31 22:07:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:43,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468623018] [2024-10-31 22:07:43,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468623018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:43,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:43,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280521829] [2024-10-31 22:07:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:43,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:43,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:43,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-10-31 22:07:43,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:43,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:43,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-10-31 22:07:43,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:43,834 INFO L124 PetriNetUnfolderBase]: 25/81 cut-off events. [2024-10-31 22:07:43,834 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:07:43,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 81 events. 25/81 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 232 event pairs, 11 based on Foata normal form. 6/83 useless extension candidates. Maximal degree in co-relation 56. Up to 44 conditions per place. [2024-10-31 22:07:43,836 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-10-31 22:07:43,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 96 flow [2024-10-31 22:07:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:43,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:43,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-10-31 22:07:43,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-10-31 22:07:43,838 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 54 flow. Second operand 4 states and 72 transitions. [2024-10-31 22:07:43,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 96 flow [2024-10-31 22:07:43,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:07:43,840 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 50 flow [2024-10-31 22:07:43,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-10-31 22:07:43,841 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-10-31 22:07:43,841 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 50 flow [2024-10-31 22:07:43,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:43,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:43,842 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:43,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:07:43,843 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-31 22:07:43,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762795, now seen corresponding path program 1 times [2024-10-31 22:07:43,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588602242] [2024-10-31 22:07:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:44,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588602242] [2024-10-31 22:07:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588602242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:44,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642470119] [2024-10-31 22:07:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:44,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:07:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:07:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:07:44,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-10-31 22:07:44,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:44,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:44,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-10-31 22:07:44,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:44,160 INFO L124 PetriNetUnfolderBase]: 25/77 cut-off events. [2024-10-31 22:07:44,161 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-31 22:07:44,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 77 events. 25/77 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 212 event pairs, 11 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 80. Up to 44 conditions per place. [2024-10-31 22:07:44,163 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2024-10-31 22:07:44,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 96 flow [2024-10-31 22:07:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:07:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:07:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-10-31 22:07:44,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-10-31 22:07:44,166 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 50 flow. Second operand 4 states and 72 transitions. [2024-10-31 22:07:44,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 96 flow [2024-10-31 22:07:44,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:07:44,169 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 46 flow [2024-10-31 22:07:44,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2024-10-31 22:07:44,170 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2024-10-31 22:07:44,171 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 46 flow [2024-10-31 22:07:44,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 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) [2024-10-31 22:07:44,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:44,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:44,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:07:44,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-10-31 22:07:44,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1282818976, now seen corresponding path program 1 times [2024-10-31 22:07:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:44,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566080785] [2024-10-31 22:07:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:44,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:44,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566080785] [2024-10-31 22:07:44,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566080785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:44,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:44,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:07:44,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229259302] [2024-10-31 22:07:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:44,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:44,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:44,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-10-31 22:07:44,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-10-31 22:07:44,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:44,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-10-31 22:07:44,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:44,311 INFO L124 PetriNetUnfolderBase]: 25/76 cut-off events. [2024-10-31 22:07:44,311 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:07:44,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 76 events. 25/76 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 205 event pairs, 25 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 86. Up to 63 conditions per place. [2024-10-31 22:07:44,312 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-10-31 22:07:44,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 70 flow [2024-10-31 22:07:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-10-31 22:07:44,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-10-31 22:07:44,316 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 46 flow. Second operand 3 states and 56 transitions. [2024-10-31 22:07:44,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 70 flow [2024-10-31 22:07:44,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:07:44,318 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-10-31 22:07:44,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-10-31 22:07:44,319 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2024-10-31 22:07:44,319 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-10-31 22:07:44,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-10-31 22:07:44,323 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-10-31 22:07:44,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-10-31 22:07:44,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-10-31 22:07:44,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-10-31 22:07:44,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-10-31 22:07:44,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-10-31 22:07:44,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-10-31 22:07:44,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-10-31 22:07:44,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-10-31 22:07:44,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-10-31 22:07:44,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-10-31 22:07:44,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-10-31 22:07:44,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-10-31 22:07:44,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-10-31 22:07:44,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:07:44,331 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-10-31 22:07:44,341 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:07:44,341 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:07:44,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:07:44 BasicIcfg [2024-10-31 22:07:44,350 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:07:44,351 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:07:44,351 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:07:44,351 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:07:44,352 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:42" (3/4) ... [2024-10-31 22:07:44,355 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:07:44,359 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-31 22:07:44,365 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-31 22:07:44,366 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-31 22:07:44,366 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-31 22:07:44,366 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-31 22:07:44,463 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:07:44,463 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:07:44,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:07:44,467 INFO L158 Benchmark]: Toolchain (without parser) took 3858.75ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 88.6MB in the end (delta: 10.4MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,468 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:07:44,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 811.47ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 68.9MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.00ms. Allocated memory is still 134.2MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,469 INFO L158 Benchmark]: Boogie Preprocessor took 48.50ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,469 INFO L158 Benchmark]: RCFGBuilder took 653.26ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 78.2MB in the end (delta: -14.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,470 INFO L158 Benchmark]: TraceAbstraction took 2165.94ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 77.8MB in the beginning and 92.8MB in the end (delta: -15.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,470 INFO L158 Benchmark]: Witness Printer took 115.58ms. Allocated memory is still 161.5MB. Free memory was 92.8MB in the beginning and 88.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:07:44,477 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 107.0MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 811.47ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 68.9MB in the end (delta: 30.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.00ms. Allocated memory is still 134.2MB. Free memory was 68.3MB in the beginning and 66.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.50ms. Allocated memory is still 134.2MB. Free memory was 66.2MB in the beginning and 64.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 653.26ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 78.2MB in the end (delta: -14.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2165.94ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 77.8MB in the beginning and 92.8MB in the end (delta: -15.0MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 115.58ms. Allocated memory is still 161.5MB. Free memory was 92.8MB in the beginning and 88.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 14 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: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 217 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 0.8s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:07:44,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8360aa25-6c15-421a-9a95-9af2280badc4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE