./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 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_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX --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 aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 12:23:20,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:23:20,769 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 12:23:20,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:23:20,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:23:20,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:23:20,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:23:20,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:23:20,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:23:20,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:23:20,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:23:20,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:23:20,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:23:20,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:23:20,803 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:23:20,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:23:20,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:23:20,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:23:20,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:23:20,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:23:20,805 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 12:23:20,806 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 12:23:20,806 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 12:23:20,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:23:20,807 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:23:20,807 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:23:20,807 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 12:23:20,808 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:23:20,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:23:20,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:23:20,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:23:20,809 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:23:20,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:23:20,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:23:20,810 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:23:20,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:23:20,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:23:20,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:23:20,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:23:20,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:23:20,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:23:20,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:23:20,817 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_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2024-11-08 12:23:21,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:23:21,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:23:21,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:23:21,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:23:21,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:23:21,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c Unable to find full path for "g++" [2024-11-08 12:23:23,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:23:23,406 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:23:23,406 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2024-11-08 12:23:23,420 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/data/6302995a7/0e006fb8af9341449f1c5d4c95c9435f/FLAGb17b55a0d [2024-11-08 12:23:23,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/data/6302995a7/0e006fb8af9341449f1c5d4c95c9435f [2024-11-08 12:23:23,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:23:23,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:23:23,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:23:23,440 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:23:23,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:23:23,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ea001a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23, skipping insertion in model container [2024-11-08 12:23:23,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:23:23,703 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 12:23:23,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:23:23,720 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:23:23,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:23:23,774 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:23:23,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23 WrapperNode [2024-11-08 12:23:23,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:23:23,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:23:23,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:23:23,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:23:23,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,834 INFO L138 Inliner]: procedures = 28, calls = 59, calls flagged for inlining = 23, calls inlined = 33, statements flattened = 374 [2024-11-08 12:23:23,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:23:23,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:23:23,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:23:23,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:23:23,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,895 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]. [2024-11-08 12:23:23,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:23:23,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:23:23,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:23:23,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:23:23,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (1/1) ... [2024-11-08 12:23:23,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:23:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 12:23:23,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:23:23,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2f7bdc0-4e0a-48ff-814e-a574a97ff47c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:23:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:23:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:23:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:23:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:23:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:23:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 12:23:23,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 12:23:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 12:23:23,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 12:23:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 12:23:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 12:23:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 12:23:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 12:23:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:23:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:23:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-08 12:23:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-08 12:23:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-08 12:23:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-08 12:23:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 12:23:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 12:23:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 12:23:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:23:24,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:23:24,004 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 12:23:24,178 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:23:24,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:23:24,859 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 12:23:24,860 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:23:25,507 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:23:25,507 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-08 12:23:25,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:23:25 BoogieIcfgContainer [2024-11-08 12:23:25,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:23:25,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:23:25,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:23:25,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:23:25,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:23:23" (1/3) ... [2024-11-08 12:23:25,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72879a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:23:25, skipping insertion in model container [2024-11-08 12:23:25,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:23:23" (2/3) ... [2024-11-08 12:23:25,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72879a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:23:25, skipping insertion in model container [2024-11-08 12:23:25,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:23:25" (3/3) ... [2024-11-08 12:23:25,519 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2024-11-08 12:23:25,540 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:23:25,541 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 12:23:25,541 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 12:23:25,725 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-08 12:23:25,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 266 flow [2024-11-08 12:23:25,835 INFO L124 PetriNetUnfolderBase]: 14/84 cut-off events. [2024-11-08 12:23:25,836 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 12:23:25,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 84 events. 14/84 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 219 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 85. Up to 3 conditions per place. [2024-11-08 12:23:25,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 100 transitions, 266 flow [2024-11-08 12:23:25,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 83 transitions, 214 flow [2024-11-08 12:23:25,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:23:25,866 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;@4e6bba17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:23:25,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-08 12:23:25,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 12:23:25,872 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-08 12:23:25,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 12:23:25,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 12:23:25,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 12:23:25,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-08 12:23:25,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:23:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash 34255240, now seen corresponding path program 1 times [2024-11-08 12:23:25,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:23:25,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577838802] [2024-11-08 12:23:25,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:23:25,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:23:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:23:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:23:26,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:23:26,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577838802] [2024-11-08 12:23:26,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577838802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:23:26,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:23:26,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 12:23:26,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167970596] [2024-11-08 12:23:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:23:26,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 12:23:26,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:23:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 12:23:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 12:23:26,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 104 [2024-11-08 12:23:26,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-08 12:23:26,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 12:23:26,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 104 [2024-11-08 12:23:26,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 12:24:00,669 INFO L124 PetriNetUnfolderBase]: 333116/409760 cut-off events. [2024-11-08 12:24:00,669 INFO L125 PetriNetUnfolderBase]: For 29375/29375 co-relation queries the response was YES. [2024-11-08 12:24:01,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851226 conditions, 409760 events. 333116/409760 cut-off events. For 29375/29375 co-relation queries the response was YES. Maximal size of possible extension queue 11049. Compared 2247585 event pairs, 294747 based on Foata normal form. 1/310247 useless extension candidates. Maximal degree in co-relation 849621. Up to 409614 conditions per place. [2024-11-08 12:24:03,361 INFO L140 encePairwiseOnDemand]: 96/104 looper letters, 65 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2024-11-08 12:24:03,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 76 transitions, 334 flow [2024-11-08 12:24:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 12:24:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 12:24:03,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-08 12:24:03,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38782051282051283 [2024-11-08 12:24:03,373 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 214 flow. Second operand 3 states and 121 transitions. [2024-11-08 12:24:03,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 76 transitions, 334 flow [2024-11-08 12:24:04,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 302 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-08 12:24:04,177 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 172 flow [2024-11-08 12:24:04,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-11-08 12:24:04,183 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, -13 predicate places. [2024-11-08 12:24:04,183 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 172 flow [2024-11-08 12:24:04,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-08 12:24:04,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 12:24:04,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 12:24:04,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:24:04,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2024-11-08 12:24:04,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:24:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash 34255241, now seen corresponding path program 1 times [2024-11-08 12:24:04,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:24:04,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949003876] [2024-11-08 12:24:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:24:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:24:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:24:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:24:04,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:24:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949003876] [2024-11-08 12:24:04,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949003876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:24:04,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:24:04,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 12:24:04,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067513712] [2024-11-08 12:24:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:24:04,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:24:04,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:24:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:24:04,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:24:04,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 104 [2024-11-08 12:24:04,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 172 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-08 12:24:04,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 12:24:04,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 104 [2024-11-08 12:24:04,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand