./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/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_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/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_8414e8eb-2413-4958-9d93-692c7af30aa8/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 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:50,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:50,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:07:50,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:50,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:51,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:51,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:51,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:51,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:51,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:51,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:51,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:51,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:51,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:51,040 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:51,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:51,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:51,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:51,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:51,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:51,043 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:07:51,046 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:07:51,046 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:07:51,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:51,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:07:51,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:51,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:51,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:51,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:51,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:51,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:51,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:07:51,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:51,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:51,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:51,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:51,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:51,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:51,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:51,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:51,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:51,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:51,056 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_8414e8eb-2413-4958-9d93-692c7af30aa8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 [2024-10-31 22:07:51,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:51,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:51,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:51,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:51,458 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:51,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix023_tso.i Unable to find full path for "g++" [2024-10-31 22:07:53,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:53,982 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:53,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2024-10-31 22:07:54,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/data/b32f405f4/3002609de6c84089b7e6eae857273e43/FLAGe26641e34 [2024-10-31 22:07:54,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/data/b32f405f4/3002609de6c84089b7e6eae857273e43 [2024-10-31 22:07:54,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:54,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:54,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:54,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:54,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:54,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:54" (1/1) ... [2024-10-31 22:07:54,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692edc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:54, skipping insertion in model container [2024-10-31 22:07:54,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:54" (1/1) ... [2024-10-31 22:07:54,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:54,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:54,881 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:55,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:55,089 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:55,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55 WrapperNode [2024-10-31 22:07:55,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:55,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:55,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:55,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:55,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,216 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 279 [2024-10-31 22:07:55,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:55,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:55,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:55,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:55,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,242 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,297 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:07:55,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:55,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:55,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:55,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:55,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (1/1) ... [2024-10-31 22:07:55,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:55,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:55,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:55,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8414e8eb-2413-4958-9d93-692c7af30aa8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:07:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:07:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:07:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:07:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:07:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:07:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:07:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:07:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:07:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:07:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:07:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:55,483 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 22:07:55,715 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:55,718 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:56,446 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:56,446 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:57,092 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:57,093 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:07:57,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:57 BoogieIcfgContainer [2024-10-31 22:07:57,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:57,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:57,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:57,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:57,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:54" (1/3) ... [2024-10-31 22:07:57,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773c8aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:57, skipping insertion in model container [2024-10-31 22:07:57,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:55" (2/3) ... [2024-10-31 22:07:57,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773c8aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:57, skipping insertion in model container [2024-10-31 22:07:57,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:57" (3/3) ... [2024-10-31 22:07:57,107 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2024-10-31 22:07:57,133 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:57,133 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:07:57,133 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:57,238 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:07:57,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 128 flow [2024-10-31 22:07:57,348 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-10-31 22:07:57,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:57,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-10-31 22:07:57,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 56 transitions, 128 flow [2024-10-31 22:07:57,366 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 52 transitions, 116 flow [2024-10-31 22:07:57,387 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:57,401 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;@312eaa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:57,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 22:07:57,410 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:57,410 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-31 22:07:57,410 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:57,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:57,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:07:57,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-10-31 22:07:57,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2139914244, now seen corresponding path program 1 times [2024-10-31 22:07:57,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:57,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850292873] [2024-10-31 22:07:57,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:58,202 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 22:07:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850292873] [2024-10-31 22:07:58,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850292873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:58,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:58,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:07:58,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533021093] [2024-10-31 22:07:58,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:58,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:58,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:58,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:58,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:58,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 56 [2024-10-31 22:07:58,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 22:07:58,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:58,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 56 [2024-10-31 22:07:58,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:02,441 INFO L124 PetriNetUnfolderBase]: 7180/11082 cut-off events. [2024-10-31 22:08:02,441 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-31 22:08:02,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20953 conditions, 11082 events. 7180/11082 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 81635 event pairs, 1032 based on Foata normal form. 540/11184 useless extension candidates. Maximal degree in co-relation 20941. Up to 8189 conditions per place. [2024-10-31 22:08:02,570 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 48 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-10-31 22:08:02,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 69 transitions, 256 flow [2024-10-31 22:08:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-10-31 22:08:02,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7380952380952381 [2024-10-31 22:08:02,590 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 116 flow. Second operand 3 states and 124 transitions. [2024-10-31 22:08:02,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 69 transitions, 256 flow [2024-10-31 22:08:02,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:08:02,601 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 108 flow [2024-10-31 22:08:02,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-10-31 22:08:02,608 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -4 predicate places. [2024-10-31 22:08:02,609 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 108 flow [2024-10-31 22:08:02,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 22:08:02,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:02,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:02,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:02,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-10-31 22:08:02,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:02,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1975186399, now seen corresponding path program 1 times [2024-10-31 22:08:02,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:02,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765735536] [2024-10-31 22:08:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:02,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:02,943 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 22:08:02,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:02,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765735536] [2024-10-31 22:08:02,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765735536] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:02,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:02,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:08:02,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121678790] [2024-10-31 22:08:02,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:02,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:02,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:02,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:02,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:02,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 56 [2024-10-31 22:08:02,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 22:08:02,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:02,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 56 [2024-10-31 22:08:02,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:06,183 INFO L124 PetriNetUnfolderBase]: 5956/9267 cut-off events. [2024-10-31 22:08:06,184 INFO L125 PetriNetUnfolderBase]: For 429/429 co-relation queries the response was YES. [2024-10-31 22:08:06,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17936 conditions, 9267 events. 5956/9267 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 66112 event pairs, 1060 based on Foata normal form. 0/9207 useless extension candidates. Maximal degree in co-relation 17926. Up to 6517 conditions per place. [2024-10-31 22:08:06,266 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 40 selfloop transitions, 2 changer transitions 2/63 dead transitions. [2024-10-31 22:08:06,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 228 flow [2024-10-31 22:08:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-10-31 22:08:06,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-10-31 22:08:06,269 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 108 flow. Second operand 3 states and 114 transitions. [2024-10-31 22:08:06,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 228 flow [2024-10-31 22:08:06,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:06,273 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-31 22:08:06,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-31 22:08:06,275 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places. [2024-10-31 22:08:06,276 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-31 22:08:06,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 22:08:06,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:06,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:06,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:08:06,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-10-31 22:08:06,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -476772857, now seen corresponding path program 1 times [2024-10-31 22:08:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:06,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755743331] [2024-10-31 22:08:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:06,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:06,437 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 22:08:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:06,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755743331] [2024-10-31 22:08:06,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755743331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:06,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:06,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:08:06,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338984293] [2024-10-31 22:08:06,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:06,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:06,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:06,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:06,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:06,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-10-31 22:08:06,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 22:08:06,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:06,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-10-31 22:08:06,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:08,981 INFO L124 PetriNetUnfolderBase]: 5296/8382 cut-off events. [2024-10-31 22:08:08,982 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-10-31 22:08:09,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16097 conditions, 8382 events. 5296/8382 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 60785 event pairs, 5296 based on Foata normal form. 225/8502 useless extension candidates. Maximal degree in co-relation 16087. Up to 7223 conditions per place. [2024-10-31 22:08:09,101 INFO L140 encePairwiseOnDemand]: 54/56 looper letters, 25 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-31 22:08:09,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 156 flow [2024-10-31 22:08:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-10-31 22:08:09,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2024-10-31 22:08:09,107 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 94 transitions. [2024-10-31 22:08:09,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 156 flow [2024-10-31 22:08:09,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:09,125 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-31 22:08:09,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-31 22:08:09,127 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places. [2024-10-31 22:08:09,128 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-31 22:08:09,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 22:08:09,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:09,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:09,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:08:09,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-10-31 22:08:09,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:09,134 INFO L85 PathProgramCache]: Analyzing trace with hash -476771573, now seen corresponding path program 1 times [2024-10-31 22:08:09,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764842714] [2024-10-31 22:08:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:09,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:09,738 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 22:08:09,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:09,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764842714] [2024-10-31 22:08:09,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764842714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:09,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:09,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136541005] [2024-10-31 22:08:09,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:09,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:09,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:09,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-10-31 22:08:09,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 22:08:09,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:09,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-10-31 22:08:09,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:12,235 INFO L124 PetriNetUnfolderBase]: 6013/9396 cut-off events. [2024-10-31 22:08:12,235 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:12,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17783 conditions, 9396 events. 6013/9396 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 68360 event pairs, 1213 based on Foata normal form. 0/9207 useless extension candidates. Maximal degree in co-relation 17777. Up to 3865 conditions per place. [2024-10-31 22:08:12,288 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 39 selfloop transitions, 2 changer transitions 56/114 dead transitions. [2024-10-31 22:08:12,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 436 flow [2024-10-31 22:08:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:08:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:08:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 275 transitions. [2024-10-31 22:08:12,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6138392857142857 [2024-10-31 22:08:12,293 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 275 transitions. [2024-10-31 22:08:12,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 436 flow [2024-10-31 22:08:12,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:12,301 INFO L231 Difference]: Finished difference. Result has 66 places, 43 transitions, 111 flow [2024-10-31 22:08:12,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=111, PETRI_PLACES=66, PETRI_TRANSITIONS=43} [2024-10-31 22:08:12,303 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2024-10-31 22:08:12,303 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 43 transitions, 111 flow [2024-10-31 22:08:12,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 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 22:08:12,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:12,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:12,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:08:12,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-10-31 22:08:12,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1438825834, now seen corresponding path program 1 times [2024-10-31 22:08:12,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:12,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666613786] [2024-10-31 22:08:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat