./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbff9cba9b3794b18d55ca52c1abf6279404a7b220f91d79730a04b586f9ee44 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:57:54,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:57:54,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:57:54,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:57:54,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:57:54,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:57:54,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:57:54,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:57:55,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:57:55,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:57:55,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:57:55,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:57:55,007 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:57:55,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:57:55,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:57:55,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:57:55,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:57:55,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:57:55,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:57:55,011 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:57:55,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:57:55,012 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:57:55,013 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:57:55,013 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:57:55,014 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:57:55,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:57:55,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:55,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:57:55,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:57:55,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:57:55,017 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:57:55,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:57:55,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:57:55,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbff9cba9b3794b18d55ca52c1abf6279404a7b220f91d79730a04b586f9ee44 [2023-11-24 22:57:55,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:57:55,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:57:55,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:57:55,399 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:57:55,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:57:55,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2023-11-24 22:57:58,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:57:58,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:57:58,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2023-11-24 22:57:58,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/630828224/9c73905276954a9e871116b63d0e20e0/FLAG05150ce55 [2023-11-24 22:57:58,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/630828224/9c73905276954a9e871116b63d0e20e0 [2023-11-24 22:57:58,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:57:58,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:57:58,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:58,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:57:58,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:57:58,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:58" (1/1) ... [2023-11-24 22:57:58,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35704630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:58, skipping insertion in model container [2023-11-24 22:57:58,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:58" (1/1) ... [2023-11-24 22:57:58,774 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:57:59,009 WARN L240 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2023-11-24 22:57:59,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:59,032 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:57:59,073 WARN L240 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2023-11-24 22:57:59,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:59,096 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:59,096 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:57:59,105 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:57:59,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59 WrapperNode [2023-11-24 22:57:59,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:59,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:59,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:57:59,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:57:59,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,152 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2023-11-24 22:57:59,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:59,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:57:59,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:57:59,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:57:59,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:57:59,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:57:59,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:57:59,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:57:59,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:59" (1/1) ... [2023-11-24 22:57:59,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:59,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:57:59,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:57:59,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:57:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:57:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:57:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:57:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-24 22:57:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-24 22:57:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:57:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:57:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:57:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:57:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:57:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:57:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:57:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-24 22:57:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-24 22:57:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:57:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:57:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:57:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-24 22:57:59,296 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-24 22:57:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 22:57:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 22:57:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:57:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:57:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:57:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:57:59,299 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:57:59,464 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:57:59,483 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:57:59,862 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:57:59,978 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := 1 + #t~post2;havoc #t~post2;#t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 22:57:59,982 INFO L158 Benchmark]: Toolchain (without parser) took 1255.38ms. Allocated memory is still 190.8MB. Free memory was 160.8MB in the beginning and 137.1MB in the end (delta: 23.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 22:57:59,983 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:57:59,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.31ms. Allocated memory is still 190.8MB. Free memory was 160.2MB in the beginning and 147.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:57:59,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.14ms. Allocated memory is still 190.8MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:57:59,987 INFO L158 Benchmark]: Boogie Preprocessor took 45.40ms. Allocated memory is still 190.8MB. Free memory was 145.0MB in the beginning and 143.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:57:59,988 INFO L158 Benchmark]: RCFGBuilder took 780.48ms. Allocated memory is still 190.8MB. Free memory was 143.5MB in the beginning and 137.1MB in the end (delta: 6.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:57:59,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.31ms. Allocated memory is still 190.8MB. Free memory was 160.2MB in the beginning and 147.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.14ms. Allocated memory is still 190.8MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.40ms. Allocated memory is still 190.8MB. Free memory was 145.0MB in the beginning and 143.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 780.48ms. Allocated memory is still 190.8MB. Free memory was 143.5MB in the beginning and 137.1MB in the end (delta: 6.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := 1 + #t~post2;havoc #t~post2;#t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := 1 + #t~post2;havoc #t~post2;#t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 22:58:00,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbff9cba9b3794b18d55ca52c1abf6279404a7b220f91d79730a04b586f9ee44 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:02,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:02,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:58:02,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:02,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:02,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:02,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:02,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:02,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:02,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:02,937 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:58:02,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:58:02,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:02,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:02,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:02,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:02,941 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:58:02,942 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:58:02,942 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:58:02,943 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:58:02,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:02,944 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:02,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:02,945 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:02,945 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:02,946 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:02,946 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:02,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:02,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:02,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:02,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:02,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:02,950 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:58:02,950 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:02,950 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:02,951 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:58:02,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:02,951 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbff9cba9b3794b18d55ca52c1abf6279404a7b220f91d79730a04b586f9ee44 [2023-11-24 22:58:03,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:03,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:03,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:03,447 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:03,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:03,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2023-11-24 22:58:06,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:07,099 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:07,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c [2023-11-24 22:58:07,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/259ca0c59/e9783a8f29164184bb701d7ed440907e/FLAG559a72463 [2023-11-24 22:58:07,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/data/259ca0c59/e9783a8f29164184bb701d7ed440907e [2023-11-24 22:58:07,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:07,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:07,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:07,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:07,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:07,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f75e402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07, skipping insertion in model container [2023-11-24 22:58:07,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:07,464 WARN L240 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2023-11-24 22:58:07,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:07,514 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 22:58:07,525 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:07,563 WARN L240 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2023-11-24 22:58:07,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:07,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:07,641 WARN L240 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_59353cf5-8bf6-4dd0-9ea0-84632916edd9/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4151,4164] [2023-11-24 22:58:07,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:07,667 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:07,667 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:58:07,689 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:07,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07 WrapperNode [2023-11-24 22:58:07,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:07,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:07,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:07,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:07,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,779 INFO L138 Inliner]: procedures = 29, calls = 76, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 108 [2023-11-24 22:58:07,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:07,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:07,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:07,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:07,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:07,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:07,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:07,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:07,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:07" (1/1) ... [2023-11-24 22:58:07,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:07,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:07,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:07,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:58:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:58:07,915 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2023-11-24 22:58:07,915 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2023-11-24 22:58:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:58:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:58:07,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:58:07,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:58:07,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:58:07,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:58:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:58:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-24 22:58:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-24 22:58:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:58:07,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:58:07,919 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-24 22:58:07,920 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-24 22:58:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 22:58:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 22:58:07,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:58:07,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:07,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:07,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:58:07,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:58:07,923 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:58:08,112 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:08,118 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:08,571 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:08,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := ~bvadd~32(1bv32, #t~post2);havoc #t~post2;#t~post3 := ~i~0;~i~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 22:58:08,739 INFO L158 Benchmark]: Toolchain (without parser) took 1600.65ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 61.8MB in the end (delta: -8.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-24 22:58:08,744 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:08,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.48ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.3MB in the beginning and 77.5MB in the end (delta: -24.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-24 22:58:08,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.08ms. Allocated memory is still 98.6MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:08,746 INFO L158 Benchmark]: Boogie Preprocessor took 42.72ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:08,748 INFO L158 Benchmark]: RCFGBuilder took 913.62ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 61.8MB in the end (delta: 11.9MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-24 22:58:08,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.48ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.3MB in the beginning and 77.5MB in the end (delta: -24.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.08ms. Allocated memory is still 98.6MB. Free memory was 77.5MB in the beginning and 75.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.72ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 73.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 913.62ms. Allocated memory is still 98.6MB. Free memory was 73.7MB in the beginning and 61.8MB in the end (delta: 11.9MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := ~bvadd~32(1bv32, #t~post2);havoc #t~post2;#t~post3 := ~i~0;~i~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := ~bvadd~32(1bv32, #t~post2);havoc #t~post2;#t~post3 := ~i~0;~i~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 22:58:08,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59353cf5-8bf6-4dd0-9ea0-84632916edd9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: havoc #t~mem1;#t~post2 := ~q1_back~0;~q1_back~0 := ~bvadd~32(1bv32, #t~post2);havoc #t~post2;#t~post3 := ~i~0;~i~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?