./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/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_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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-4fc63b2 [2024-10-31 21:59:14,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:14,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 21:59:14,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:14,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:14,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:14,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:14,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:14,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:14,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:14,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:14,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:14,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:14,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:14,958 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:14,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:14,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:14,959 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:14,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:14,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:14,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:14,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:14,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:14,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:14,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:14,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:14,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:14,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:14,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:14,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:14,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:14,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:14,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:14,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:14,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:14,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:14,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:14,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:14,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:14,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:14,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:14,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:14,972 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_d6b81282-bd16-453b-be9e-aac473587070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee5edffc06a346ddce4a9cfa75b4213bee8ccd3009aa5307dc09037d26d7f28 [2024-10-31 21:59:15,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:15,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:15,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:15,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:15,384 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:15,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c Unable to find full path for "g++" [2024-10-31 21:59:17,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:17,907 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:17,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2024-10-31 21:59:17,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/data/0c22936f7/2e2c28f132e3446d8e323d171373eba8/FLAG0d522c485 [2024-10-31 21:59:18,295 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/data/0c22936f7/2e2c28f132e3446d8e323d171373eba8 [2024-10-31 21:59:18,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:18,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:18,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:18,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:18,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:18,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7253f5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18, skipping insertion in model container [2024-10-31 21:59:18,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:18,575 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2024-10-31 21:59:18,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:18,603 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:18,650 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4303,4316] [2024-10-31 21:59:18,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:18,689 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:18,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18 WrapperNode [2024-10-31 21:59:18,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:18,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:18,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:18,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:18,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,807 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 377 [2024-10-31 21:59:18,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:18,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:18,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:18,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:18,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,864 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]. [2024-10-31 21:59:18,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:18,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:18,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:18,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:18,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (1/1) ... [2024-10-31 21:59:18,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:18,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:18,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:18,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6b81282-bd16-453b-be9e-aac473587070/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:59:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:59:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:59:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:59:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 21:59:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 21:59:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 21:59:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 21:59:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 21:59:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 21:59:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 21:59:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 21:59:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:59:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-31 21:59:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-31 21:59:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-31 21:59:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-31 21:59:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 21:59:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 21:59:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:59:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:19,018 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 21:59:19,201 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:19,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:20,010 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:20,010 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:20,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:20,605 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-31 21:59:20,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:20 BoogieIcfgContainer [2024-10-31 21:59:20,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:20,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:20,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:20,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:20,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:18" (1/3) ... [2024-10-31 21:59:20,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41401652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:20, skipping insertion in model container [2024-10-31 21:59:20,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:18" (2/3) ... [2024-10-31 21:59:20,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41401652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:20, skipping insertion in model container [2024-10-31 21:59:20,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:20" (3/3) ... [2024-10-31 21:59:20,614 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2024-10-31 21:59:20,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:20,634 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:59:20,634 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:20,750 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-31 21:59:20,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 84 transitions, 234 flow [2024-10-31 21:59:20,858 INFO L124 PetriNetUnfolderBase]: 13/68 cut-off events. [2024-10-31 21:59:20,858 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:59:20,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 68 events. 13/68 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 161 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2024-10-31 21:59:20,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 84 transitions, 234 flow [2024-10-31 21:59:20,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 67 transitions, 182 flow [2024-10-31 21:59:20,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:20,890 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=LoopHeads, 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;@1bed2420, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:20,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-31 21:59:20,925 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:20,926 INFO L124 PetriNetUnfolderBase]: 13/66 cut-off events. [2024-10-31 21:59:20,926 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:59:20,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:20,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:20,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-31 21:59:20,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:20,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1176902972, now seen corresponding path program 1 times [2024-10-31 21:59:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:20,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762697292] [2024-10-31 21:59:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:21,304 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 21:59:21,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:21,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762697292] [2024-10-31 21:59:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762697292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:21,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:21,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:21,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858359541] [2024-10-31 21:59:21,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:21,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:21,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:21,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:21,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2024-10-31 21:59:21,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 21:59:21,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:21,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2024-10-31 21:59:21,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:37,206 INFO L124 PetriNetUnfolderBase]: 135041/166671 cut-off events. [2024-10-31 21:59:37,206 INFO L125 PetriNetUnfolderBase]: For 14707/14707 co-relation queries the response was YES. [2024-10-31 21:59:37,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349618 conditions, 166671 events. 135041/166671 cut-off events. For 14707/14707 co-relation queries the response was YES. Maximal size of possible extension queue 4251. Compared 842515 event pairs, 115423 based on Foata normal form. 0/147010 useless extension candidates. Maximal degree in co-relation 348585. Up to 166532 conditions per place. [2024-10-31 21:59:38,230 INFO L140 encePairwiseOnDemand]: 84/88 looper letters, 58 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2024-10-31 21:59:38,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 63 transitions, 290 flow [2024-10-31 21:59:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 21:59:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2024-10-31 21:59:38,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4772727272727273 [2024-10-31 21:59:38,246 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 182 flow. Second operand 2 states and 84 transitions. [2024-10-31 21:59:38,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 63 transitions, 290 flow [2024-10-31 21:59:38,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 63 transitions, 258 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-31 21:59:38,937 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 142 flow [2024-10-31 21:59:38,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2024-10-31 21:59:38,944 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -11 predicate places. [2024-10-31 21:59:38,945 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 142 flow [2024-10-31 21:59:38,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 21:59:38,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:38,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:38,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:38,946 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-31 21:59:38,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1800695941, now seen corresponding path program 1 times [2024-10-31 21:59:38,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:38,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921880346] [2024-10-31 21:59:38,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:39,604 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 21:59:39,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:39,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921880346] [2024-10-31 21:59:39,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921880346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:39,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:39,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:39,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992433859] [2024-10-31 21:59:39,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:39,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:39,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:39,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 88 [2024-10-31 21:59:39,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 21:59:39,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:39,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 88 [2024-10-31 21:59:39,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand