./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --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 fd523f7f98069bc15a8892c75be26f15a858863c31fc6ea863dcd5f92e46c458 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:09:12,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:09:12,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:09:12,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:09:12,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:09:12,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:09:12,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:09:12,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:09:12,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:09:12,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:09:12,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:09:12,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:09:12,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:09:12,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:09:12,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:09:12,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:09:12,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:09:12,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:09:12,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:09:12,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:09:12,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:09:12,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:09:12,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:09:12,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:09:12,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:09:12,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:09:12,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:09:12,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:09:12,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:09:12,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:09:12,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:09:12,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:09:12,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:09:12,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:09:12,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:09:12,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:09:12,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:09:12,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:09:12,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:09:12,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:09:12,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:09:12,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:09:12,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:09:12,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:09:12,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:09:12,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:09:12,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:09:12,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:09:12,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:09:12,874 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:09:12,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:09:12,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:09:12,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:09:12,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:09:12,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:09:12,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:09:12,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:09:12,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:09:12,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:09:12,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:09:12,878 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:09:12,878 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:09:12,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:09:12,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:12,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:09:12,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:09:12,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:09:12,880 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:09:12,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:09:12,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:09:12,880 INFO L138 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_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd523f7f98069bc15a8892c75be26f15a858863c31fc6ea863dcd5f92e46c458 [2021-11-22 23:09:13,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:09:13,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:09:13,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:09:13,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:09:13,270 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:09:13,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2021-11-22 23:09:13,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/d705978c2/b7f35ba255554234a927d939283ea5d0/FLAG10d161d7a [2021-11-22 23:09:13,830 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:09:13,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2021-11-22 23:09:13,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/d705978c2/b7f35ba255554234a927d939283ea5d0/FLAG10d161d7a [2021-11-22 23:09:14,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/d705978c2/b7f35ba255554234a927d939283ea5d0 [2021-11-22 23:09:14,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:09:14,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:09:14,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:14,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:09:14,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:09:14,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e69130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14, skipping insertion in model container [2021-11-22 23:09:14,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:09:14,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:09:14,487 WARN L230 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_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2087,2100] [2021-11-22 23:09:14,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:14,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:09:14,547 WARN L230 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_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2087,2100] [2021-11-22 23:09:14,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:14,571 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:09:14,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14 WrapperNode [2021-11-22 23:09:14,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:14,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:14,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:09:14,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:09:14,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,622 INFO L137 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2021-11-22 23:09:14,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:14,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:09:14,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:09:14,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:09:14,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:09:14,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:09:14,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:09:14,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:09:14,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:14" (1/1) ... [2021-11-22 23:09:14,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:09:14,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:09:14,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:09:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-22 23:09:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-22 23:09:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:09:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:09:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 23:09:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 23:09:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:09:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:09:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:09:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:09:14,781 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:09:14,854 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:09:14,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:09:15,002 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:09:15,058 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:09:15,059 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:09:15,060 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2021-11-22 23:09:15,061 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2021-11-22 23:09:15,066 INFO L158 Benchmark]: Toolchain (without parser) took 843.79ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 55.8MB in the end (delta: 9.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-11-22 23:09:15,067 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:09:15,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.96ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 71.7MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 23:09:15,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.53ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:09:15,070 INFO L158 Benchmark]: Boogie Preprocessor took 55.86ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 966.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 23:09:15,072 INFO L158 Benchmark]: RCFGBuilder took 383.46ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 55.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:09:15,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.96ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 71.7MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.53ms. Allocated memory is still 96.5MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.86ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 69.0MB in the end (delta: 966.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 383.46ms. Allocated memory is still 96.5MB. Free memory was 68.7MB in the beginning and 55.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 23:09:15,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --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 fd523f7f98069bc15a8892c75be26f15a858863c31fc6ea863dcd5f92e46c458 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:09:17,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:09:17,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:09:17,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:09:17,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:09:17,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:09:17,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:09:17,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:09:17,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:09:17,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:09:17,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:09:17,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:09:17,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:09:17,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:09:17,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:09:17,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:09:17,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:09:17,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:09:17,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:09:17,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:09:17,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:09:17,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:09:17,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:09:17,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:09:17,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:09:17,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:09:17,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:09:17,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:09:17,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:09:17,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:09:17,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:09:17,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:09:17,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:09:17,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:09:17,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:09:17,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:09:17,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:09:17,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:09:17,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:09:17,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:09:17,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:09:17,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-22 23:09:17,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:09:17,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:09:17,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:09:17,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:09:17,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:09:17,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:09:17,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:09:17,912 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:09:17,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:09:17,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:09:17,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:09:17,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:09:17,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:09:17,914 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 23:09:17,914 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 23:09:17,915 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 23:09:17,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:09:17,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:09:17,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:09:17,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:09:17,916 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:09:17,916 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:09:17,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:09:17,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:17,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:09:17,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:09:17,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:09:17,917 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-22 23:09:17,917 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 23:09:17,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:09:17,918 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-22 23:09:17,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 23:09:17,918 INFO L138 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_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd523f7f98069bc15a8892c75be26f15a858863c31fc6ea863dcd5f92e46c458 [2021-11-22 23:09:18,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:09:18,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:09:18,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:09:18,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:09:18,388 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:09:18,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2021-11-22 23:09:18,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/76be168b2/adfc4aeb3001405890509dfb130f4c9d/FLAG839966009 [2021-11-22 23:09:19,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:09:19,009 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2021-11-22 23:09:19,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/76be168b2/adfc4aeb3001405890509dfb130f4c9d/FLAG839966009 [2021-11-22 23:09:19,342 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/data/76be168b2/adfc4aeb3001405890509dfb130f4c9d [2021-11-22 23:09:19,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:09:19,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:09:19,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:19,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:09:19,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:09:19,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4665b877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19, skipping insertion in model container [2021-11-22 23:09:19,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:09:19,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:09:19,600 WARN L230 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_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2087,2100] [2021-11-22 23:09:19,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:19,640 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:09:19,701 WARN L230 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_9c147d34-35ce-49b3-942c-39d6339580b5/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c[2087,2100] [2021-11-22 23:09:19,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:09:19,728 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:09:19,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19 WrapperNode [2021-11-22 23:09:19,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:09:19,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:19,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:09:19,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:09:19,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,776 INFO L137 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2021-11-22 23:09:19,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:09:19,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:09:19,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:09:19,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:09:19,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:09:19,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:09:19,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:09:19,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:09:19,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:09:19" (1/1) ... [2021-11-22 23:09:19,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:09:19,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:09:19,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:09:19,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:09:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:09:19,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-22 23:09:19,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-22 23:09:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-22 23:09:19,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-22 23:09:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 23:09:19,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-22 23:09:19,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-22 23:09:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:09:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 23:09:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 23:09:19,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 23:09:19,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:09:19,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:09:19,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:09:19,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 23:09:19,952 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:09:20,080 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:09:20,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:09:20,281 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:09:20,410 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:09:20,410 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 23:09:20,411 ERROR L335 CfgBuilder]: Unexpected successor node of atomic block begin: L53 is neither atomic block end nor a sink node. [2021-11-22 23:09:20,412 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2021-11-22 23:09:20,416 INFO L158 Benchmark]: Toolchain (without parser) took 1066.22ms. Allocated memory is still 71.3MB. Free memory was 52.9MB in the beginning and 36.6MB in the end (delta: 16.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-22 23:09:20,417 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:09:20,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.58ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 52.8MB in the end (delta: -106.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:09:20,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.13ms. Allocated memory is still 71.3MB. Free memory was 52.8MB in the beginning and 51.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:09:20,419 INFO L158 Benchmark]: Boogie Preprocessor took 61.86ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 50.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:09:20,420 INFO L158 Benchmark]: RCFGBuilder took 573.43ms. Allocated memory is still 71.3MB. Free memory was 50.1MB in the beginning and 36.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 23:09:20,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.58ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 52.8MB in the end (delta: -106.2kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.13ms. Allocated memory is still 71.3MB. Free memory was 52.8MB in the beginning and 51.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.86ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 50.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.43ms. Allocated memory is still 71.3MB. Free memory was 50.1MB in the beginning and 36.6MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-22 23:09:20,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c147d34-35ce-49b3-942c-39d6339580b5/bin/ukojak-LBtLqBUTdQ/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: Large block encoding incomplete: Is there illegal control flow (e.g. loops) within an atomic block?