./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:30:12,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:30:12,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:30:12,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:30:12,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:30:12,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:30:12,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:30:12,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:30:12,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:30:12,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:30:12,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:30:12,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:30:12,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:30:12,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:30:12,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:30:12,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:30:12,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:30:12,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:30:12,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:30:12,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:30:12,469 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:30:12,470 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:30:12,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:30:12,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:30:12,472 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:30:12,473 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:30:12,474 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:30:12,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:30:12,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:12,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:30:12,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:30:12,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:30:12,478 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:30:12,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:30:12,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:30:12,481 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_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 [2023-11-21 18:30:12,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:30:12,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:30:12,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:30:12,874 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:30:12,876 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:30:12,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2023-11-21 18:30:16,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:30:17,112 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:30:17,113 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2023-11-21 18:30:17,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/d772cbf0f/648c868e36a3403cad23740296302fb8/FLAGd51b5d9f9 [2023-11-21 18:30:17,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/d772cbf0f/648c868e36a3403cad23740296302fb8 [2023-11-21 18:30:17,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:30:17,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:30:17,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:17,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:30:17,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:30:17,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f78b55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17, skipping insertion in model container [2023-11-21 18:30:17,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:17,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:17,482 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:30:17,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:17,529 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:30:17,530 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:30:17,540 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:30:17,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17 WrapperNode [2023-11-21 18:30:17,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:17,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:17,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:30:17,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:30:17,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,600 INFO L138 Inliner]: procedures = 24, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-11-21 18:30:17,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:17,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:30:17,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:30:17,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:30:17,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:30:17,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:30:17,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:30:17,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:30:17,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:17" (1/1) ... [2023-11-21 18:30:17,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:17,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:30:17,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:30:17,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:30:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:30:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 18:30:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 18:30:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 18:30:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 18:30:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:30:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:30:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:30:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:30:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:30:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 18:30:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 18:30:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:30:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:30:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:30:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:30:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:30:17,762 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 18:30:17,969 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:30:17,973 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:30:18,283 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:30:18,471 WARN L1820 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-21 18:30:18,557 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~mem2;#t~post3 := ~back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~back~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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:295) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 18:30:18,562 INFO L158 Benchmark]: Toolchain (without parser) took 1409.29ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 153.6MB in the end (delta: -5.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2023-11-21 18:30:18,563 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:18,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.95ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 137.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:18,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.14ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 135.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:18,566 INFO L158 Benchmark]: Boogie Preprocessor took 42.02ms. Allocated memory is still 195.0MB. Free memory was 135.6MB in the beginning and 134.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:18,567 INFO L158 Benchmark]: RCFGBuilder took 915.11ms. Allocated memory is still 195.0MB. Free memory was 134.0MB in the beginning and 154.7MB in the end (delta: -20.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-21 18:30:18,571 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.95ms. Allocated memory is still 195.0MB. Free memory was 148.7MB in the beginning and 137.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.14ms. Allocated memory is still 195.0MB. Free memory was 137.3MB in the beginning and 135.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.02ms. Allocated memory is still 195.0MB. Free memory was 135.6MB in the beginning and 134.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 915.11ms. Allocated memory is still 195.0MB. Free memory was 134.0MB in the beginning and 154.7MB in the end (delta: -20.7MB). Peak memory consumption was 26.4MB. 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~mem2;#t~post3 := ~back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~back~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~mem2;#t~post3 := ~back~0;assume 1 + #t~post3 >= -2147483648;assume 1 + #t~post3 <= 2147483647;~back~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:332) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-21 18:30:18,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/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_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:30:21,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:30:22,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-21 18:30:22,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:30:22,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:30:22,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:30:22,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:30:22,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:30:22,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:30:22,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:30:22,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:30:22,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:30:22,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:30:22,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:30:22,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:30:22,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:30:22,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:30:22,108 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:30:22,109 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:30:22,111 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:30:22,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:30:22,112 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:30:22,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:30:22,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:30:22,114 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:30:22,115 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:30:22,116 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:30:22,116 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:30:22,117 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:30:22,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:30:22,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:22,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:30:22,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:30:22,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:30:22,122 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:30:22,122 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:30:22,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:30:22,123 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:30:22,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:30:22,125 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_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608e0c2870f111f9f6921442a1f1a544ee956a8de04c7629c0edf3e54cde4da3 [2023-11-21 18:30:22,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:30:22,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:30:22,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:30:22,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:30:22,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:30:22,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2023-11-21 18:30:26,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:30:26,810 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:30:26,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/sv-benchmarks/c/weaver/popl20-simple-queue.wvr.c [2023-11-21 18:30:26,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/67a5701b0/436b5f4ab11340429ff338ee2fd67578/FLAG447a03c39 [2023-11-21 18:30:26,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/data/67a5701b0/436b5f4ab11340429ff338ee2fd67578 [2023-11-21 18:30:26,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:30:26,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:30:26,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:26,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:30:26,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:30:26,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:26" (1/1) ... [2023-11-21 18:30:26,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b98a191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:26, skipping insertion in model container [2023-11-21 18:30:26,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:30:26" (1/1) ... [2023-11-21 18:30:26,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:27,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:27,285 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 18:30:27,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:30:27,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:27,357 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:30:27,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:30:27,433 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:30:27,433 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:30:27,444 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:30:27,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27 WrapperNode [2023-11-21 18:30:27,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:30:27,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:27,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:30:27,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:30:27,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,497 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,537 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-11-21 18:30:27,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:30:27,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:30:27,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:30:27,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:30:27,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,591 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:30:27,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:30:27,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:30:27,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:30:27,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:30:27" (1/1) ... [2023-11-21 18:30:27,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:30:27,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:30:27,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:30:27,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:30:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:30:27,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:30:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:30:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 18:30:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 18:30:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 18:30:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 18:30:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 18:30:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:30:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:30:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 18:30:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 18:30:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:30:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:30:27,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:30:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:30:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:30:27,738 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 18:30:27,874 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:30:27,885 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:30:28,384 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:30:28,692 WARN L1820 r$LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-21 18:30:28,763 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~mem2;#t~post3 := ~back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~back~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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:295) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 18:30:28,768 INFO L158 Benchmark]: Toolchain (without parser) took 1918.71ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 46.7MB in the end (delta: 18.4MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2023-11-21 18:30:28,769 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:30:28,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.41ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 51.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:30:28,772 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.35ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 49.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:28,773 INFO L158 Benchmark]: Boogie Preprocessor took 86.99ms. Allocated memory is still 88.1MB. Free memory was 49.7MB in the beginning and 48.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:30:28,774 INFO L158 Benchmark]: RCFGBuilder took 1139.64ms. Allocated memory is still 88.1MB. Free memory was 48.0MB in the beginning and 46.7MB in the end (delta: 1.3MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-21 18:30:28,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.41ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 51.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.35ms. Allocated memory is still 88.1MB. Free memory was 51.6MB in the beginning and 49.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.99ms. Allocated memory is still 88.1MB. Free memory was 49.7MB in the beginning and 48.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1139.64ms. Allocated memory is still 88.1MB. Free memory was 48.0MB in the beginning and 46.7MB in the end (delta: 1.3MB). Peak memory consumption was 25.5MB. 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~mem2;#t~post3 := ~back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~back~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~mem2;#t~post3 := ~back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~back~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:332) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-21 18:30:28,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01a1b486-a6bc-42fa-add8-8d297cf126cf/bin/ukojak-verify-i0I2FZA1j2/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~mem2;#t~post3 := ~back~0;assume ~bvsle~33(6442450944bv33, ~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)));assume ~bvsle~33(~bvadd~33(1bv33, ~sign_extend~33~32(#t~post3)), 2147483647bv33);~back~0 := ~bvadd~32(1bv32, #t~post3);havoc #t~post3;). Is there illegal control flow (e.g. loops) within an atomic block?