./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:29:14,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:29:14,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:29:14,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:29:14,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:29:14,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:29:14,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:29:14,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:29:14,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:29:14,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:29:14,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:29:14,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:29:14,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:29:14,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:29:14,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:29:14,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:29:14,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:29:14,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:29:14,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:29:14,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:29:14,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:29:14,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:29:14,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:29:14,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:29:14,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:29:14,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:29:14,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:29:14,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:29:14,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:29:14,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:29:14,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:29:14,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:29:14,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:29:14,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:29:14,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:29:14,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:29:14,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:29:14,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:29:14,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:29:14,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:29:14,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:29:14,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:29:14,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:29:14,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:29:14,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:29:14,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:29:14,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:29:14,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:29:14,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:29:14,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:29:14,265 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:29:14,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:29:14,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:29:14,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:29:14,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:29:14,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:29:14,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:29:14,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:29:14,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:29:14,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:29:14,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:29:14,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:29:14,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:29:14,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:29:14,269 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2021-12-15 12:29:14,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:29:14,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:29:14,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:29:14,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:29:14,485 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:29:14,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2021-12-15 12:29:14,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9335fce/b6658f2a154c4d22afbea5c2eb005c81/FLAGd1861837d [2021-12-15 12:29:14,912 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:29:14,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2021-12-15 12:29:14,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9335fce/b6658f2a154c4d22afbea5c2eb005c81/FLAGd1861837d [2021-12-15 12:29:14,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9335fce/b6658f2a154c4d22afbea5c2eb005c81 [2021-12-15 12:29:14,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:29:14,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:29:14,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:29:14,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:29:14,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:29:14,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:29:14" (1/1) ... [2021-12-15 12:29:14,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca4cb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:14, skipping insertion in model container [2021-12-15 12:29:14,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:29:14" (1/1) ... [2021-12-15 12:29:14,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:29:14,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:29:15,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2021-12-15 12:29:15,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:29:15,164 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:29:15,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2021-12-15 12:29:15,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:29:15,210 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:29:15,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15 WrapperNode [2021-12-15 12:29:15,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:29:15,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:29:15,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:29:15,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:29:15,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,276 INFO L137 Inliner]: procedures = 28, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 393 [2021-12-15 12:29:15,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:29:15,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:29:15,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:29:15,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:29:15,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:29:15,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:29:15,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:29:15,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:29:15,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:15" (1/1) ... [2021-12-15 12:29:15,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:29:15,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:29:15,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 12:29:15,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 12:29:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:29:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:29:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:29:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:29:15,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:29:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:29:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:29:15,383 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:29:15,383 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:29:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-15 12:29:15,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:29:15,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:29:15,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:29:15,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:29:15,386 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:29:15,488 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:29:15,489 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:29:15,888 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:29:15,961 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 12:29:15,965 INFO L158 Benchmark]: Toolchain (without parser) took 1026.50ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 68.3MB in the beginning and 70.1MB in the end (delta: -1.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-12-15 12:29:15,966 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:29:15,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.73ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 68.1MB in the beginning and 107.7MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:29:15,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.58ms. Allocated memory is still 134.2MB. Free memory was 107.7MB in the beginning and 104.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:29:15,968 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 102.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:29:15,969 INFO L158 Benchmark]: RCFGBuilder took 650.25ms. Allocated memory is still 134.2MB. Free memory was 102.2MB in the beginning and 70.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-12-15 12:29:15,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.73ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 68.1MB in the beginning and 107.7MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.58ms. Allocated memory is still 134.2MB. Free memory was 107.7MB in the beginning and 104.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 134.2MB. Free memory was 104.7MB in the beginning and 102.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 650.25ms. Allocated memory is still 134.2MB. Free memory was 102.2MB in the beginning and 70.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:29:16,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:29:17,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:29:17,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:29:17,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:29:17,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:29:17,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:29:17,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:29:17,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:29:17,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:29:17,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:29:17,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:29:17,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:29:17,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:29:17,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:29:17,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:29:17,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:29:17,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:29:17,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:29:17,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:29:17,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:29:17,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:29:17,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:29:17,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:29:17,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:29:17,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:29:17,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:29:17,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:29:17,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:29:17,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:29:17,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:29:17,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:29:17,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:29:17,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:29:17,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:29:17,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:29:17,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:29:17,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:29:17,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:29:17,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:29:17,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:29:17,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:29:17,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:29:17,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:29:17,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:29:17,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:29:17,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:29:17,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:29:17,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:29:17,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:29:17,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:29:17,767 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:29:17,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:29:17,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:29:17,768 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:29:17,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:29:17,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:29:17,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:29:17,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:29:17,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:29:17,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:29:17,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:29:17,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:29:17,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:29:17,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:29:17,777 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2021-12-15 12:29:18,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:29:18,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:29:18,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:29:18,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:29:18,068 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:29:18,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2021-12-15 12:29:18,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f99f4714/63cccc9ff5d44f16818d30ab9d08cef7/FLAGab298241e [2021-12-15 12:29:18,463 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:29:18,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2021-12-15 12:29:18,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f99f4714/63cccc9ff5d44f16818d30ab9d08cef7/FLAGab298241e [2021-12-15 12:29:18,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f99f4714/63cccc9ff5d44f16818d30ab9d08cef7 [2021-12-15 12:29:18,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:29:18,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:29:18,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:29:18,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:29:18,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:29:18,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:29:18" (1/1) ... [2021-12-15 12:29:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2808e32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:18, skipping insertion in model container [2021-12-15 12:29:18,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:29:18" (1/1) ... [2021-12-15 12:29:18,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:29:18,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:29:19,054 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2021-12-15 12:29:19,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:29:19,068 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:29:19,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:29:19,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2021-12-15 12:29:19,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:29:19,095 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:29:19,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c[4380,4393] [2021-12-15 12:29:19,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:29:19,158 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:29:19,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19 WrapperNode [2021-12-15 12:29:19,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:29:19,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:29:19,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:29:19,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:29:19,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,224 INFO L137 Inliner]: procedures = 30, calls = 80, calls flagged for inlining = 26, calls inlined = 32, statements flattened = 381 [2021-12-15 12:29:19,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:29:19,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:29:19,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:29:19,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:29:19,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:29:19,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:29:19,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:29:19,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:29:19,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:29:19" (1/1) ... [2021-12-15 12:29:19,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:29:19,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:29:19,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 12:29:19,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 12:29:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:29:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-15 12:29:19,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-15 12:29:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-15 12:29:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-15 12:29:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-15 12:29:19,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-15 12:29:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:29:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:29:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:29:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:29:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:29:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 12:29:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:29:19,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:29:19,350 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:29:19,427 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:29:19,428 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:29:20,090 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:29:20,176 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 12:29:20,178 INFO L158 Benchmark]: Toolchain (without parser) took 1293.21ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.7MB in the beginning and 39.0MB in the end (delta: -5.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-12-15 12:29:20,179 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:29:20,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 50.4MB in the end (delta: -16.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-12-15 12:29:20,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.43ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 47.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:29:20,180 INFO L158 Benchmark]: Boogie Preprocessor took 57.47ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 44.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:29:20,181 INFO L158 Benchmark]: RCFGBuilder took 891.82ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 39.0MB in the end (delta: 5.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-12-15 12:29:20,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.00ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 50.4MB in the end (delta: -16.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.43ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 47.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.47ms. Allocated memory is still 69.2MB. Free memory was 47.3MB in the beginning and 44.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 891.82ms. Allocated memory is still 69.2MB. Free memory was 44.6MB in the beginning and 39.0MB in the end (delta: 5.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 12:29:20,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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: Set is immutable