./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:47:47,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:47:47,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:47:47,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:47:47,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:47:47,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:47:47,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:47:47,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:47:47,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:47:47,831 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:47:47,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:47:47,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:47:47,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:47:47,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:47:47,836 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:47:47,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:47:47,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:47:47,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:47:47,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:47:47,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:47:47,841 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:47:47,843 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:47:47,843 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:47:47,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:47:47,843 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:47:47,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:47:47,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:47:47,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:47:47,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:47:47,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:47:47,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:47:47,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:47:47,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:47:47,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:47:47,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:47:47,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:47:47,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:47:47,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:47:47,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:47:47,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:47:47,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:47:47,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:47:47,849 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 462fb42b593b74362524fb8209dde3f76380a79de0c48b612eb75bd0eda8df1c [2024-11-19 09:47:48,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:47:48,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:47:48,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:47:48,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:47:48,140 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:47:48,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-11-19 09:47:49,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:47:49,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:47:49,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2024-11-19 09:47:49,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173f1466e/27e83356a39b47cebfd939ee740a4c73/FLAGd3bc4e51e [2024-11-19 09:47:50,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173f1466e/27e83356a39b47cebfd939ee740a4c73 [2024-11-19 09:47:50,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:47:50,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:47:50,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:47:50,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:47:50,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:47:50,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149ab990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50, skipping insertion in model container [2024-11-19 09:47:50,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:47:50,373 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 09:47:50,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:47:50,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:47:50,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:47:50,436 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:47:50,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50 WrapperNode [2024-11-19 09:47:50,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:47:50,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:47:50,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:47:50,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:47:50,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,482 INFO L138 Inliner]: procedures = 28, calls = 66, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 301 [2024-11-19 09:47:50,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:47:50,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:47:50,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:47:50,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:47:50,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,531 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-19 09:47:50,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:47:50,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:47:50,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:47:50,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:47:50,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (1/1) ... [2024-11-19 09:47:50,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:47:50,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:47:50,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:47:50,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:47:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:47:50,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:47:50,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:47:50,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:47:50,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 09:47:50,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-19 09:47:50,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-19 09:47:50,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-19 09:47:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:47:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:47:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 09:47:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:47:50,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:47:50,684 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:47:50,801 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:47:50,803 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:47:51,293 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:47:51,293 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:47:51,700 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:47:51,701 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-19 09:47:51,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:47:51 BoogieIcfgContainer [2024-11-19 09:47:51,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:47:51,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:47:51,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:47:51,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:47:51,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:47:50" (1/3) ... [2024-11-19 09:47:51,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424edd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:47:51, skipping insertion in model container [2024-11-19 09:47:51,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:47:50" (2/3) ... [2024-11-19 09:47:51,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424edd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:47:51, skipping insertion in model container [2024-11-19 09:47:51,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:47:51" (3/3) ... [2024-11-19 09:47:51,712 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2024-11-19 09:47:51,732 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:47:51,733 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 09:47:51,733 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:47:51,849 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-19 09:47:51,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 97 transitions, 260 flow [2024-11-19 09:47:51,939 INFO L124 PetriNetUnfolderBase]: 13/85 cut-off events. [2024-11-19 09:47:51,940 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 09:47:51,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 85 events. 13/85 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 245 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 89. Up to 3 conditions per place. [2024-11-19 09:47:51,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 97 transitions, 260 flow [2024-11-19 09:47:51,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 84 transitions, 216 flow [2024-11-19 09:47:51,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:47:51,970 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;@55dae87c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:47:51,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-19 09:47:51,974 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:47:51,974 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-11-19 09:47:51,974 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:47:51,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:47:51,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:47:51,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-19 09:47:51,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:47:51,981 INFO L85 PathProgramCache]: Analyzing trace with hash 981472, now seen corresponding path program 1 times [2024-11-19 09:47:51,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:47:51,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126821961] [2024-11-19 09:47:51,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:47:51,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:47:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:47:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:47:52,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:47:52,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126821961] [2024-11-19 09:47:52,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126821961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:47:52,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:47:52,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:47:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110192947] [2024-11-19 09:47:52,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:47:52,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:47:52,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:47:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:47:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:47:52,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 101 [2024-11-19 09:47:52,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2024-11-19 09:47:52,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:47:52,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 101 [2024-11-19 09:47:52,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand