./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu --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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:29,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:29,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:29,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:29,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:29,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:29,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:29,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:29,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:29,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:29,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:29,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:29,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:29,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:29,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:29,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:29,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:29,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:29,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:29,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:29,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:29,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:29,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:29,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:29,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:29,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:29,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:29,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:29,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:29,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:29,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:29,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:29,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:29,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:29,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:29,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:29,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:29,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:29,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:29,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:29,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:29,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:05:29,452 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:29,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:29,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:29,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:29,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:29,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:29,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:29,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:29,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:05:29,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:29,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:29,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:29,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:29,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:29,460 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:29,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:29,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:29,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:29,461 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:29,461 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:29,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:29,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:29,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:29,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:29,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:29,463 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:05:29,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:05:29,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:29,464 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-23 15:05:29,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:29,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:29,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:29,871 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:29,873 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:29,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-23 15:05:29,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/78571da70/2fbc4aaebbee4f01ab63445de2139196/FLAG9b8f9cd3b [2021-11-23 15:05:30,559 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:30,560 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-23 15:05:30,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/78571da70/2fbc4aaebbee4f01ab63445de2139196/FLAG9b8f9cd3b [2021-11-23 15:05:30,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/78571da70/2fbc4aaebbee4f01ab63445de2139196 [2021-11-23 15:05:30,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:30,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:30,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:30,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:30,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:30,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afeacaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:30, skipping insertion in model container [2021-11-23 15:05:30,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:30" (1/1) ... [2021-11-23 15:05:30,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:30,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:31,222 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-23 15:05:31,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:31,245 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:31,288 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-23 15:05:31,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:31,312 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:31,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31 WrapperNode [2021-11-23 15:05:31,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:31,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:31,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:31,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:31,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,380 INFO L137 Inliner]: procedures = 26, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 118 [2021-11-23 15:05:31,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:31,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:31,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:31,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:31,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:31,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:31,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:31,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:31,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:31" (1/1) ... [2021-11-23 15:05:31,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:31,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:31,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:31,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:05:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2021-11-23 15:05:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2021-11-23 15:05:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:05:31,564 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 15:05:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 15:05:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 15:05:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 15:05:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 15:05:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 15:05:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 15:05:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 15:05:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:05:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:05:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:05:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2021-11-23 15:05:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2021-11-23 15:05:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:05:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:05:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:31,571 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:05:31,715 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:31,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:32,101 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:32,249 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) [2021-11-23 15:05:32,265 INFO L158 Benchmark]: Toolchain (without parser) took 1344.48ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 48.2MB in the beginning and 52.3MB in the end (delta: -4.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-23 15:05:32,265 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:32,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.98ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 48.0MB in the beginning and 79.4MB in the end (delta: -31.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:32,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.08ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 77.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:32,269 INFO L158 Benchmark]: Boogie Preprocessor took 79.31ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 75.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:32,270 INFO L158 Benchmark]: RCFGBuilder took 784.36ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 52.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:32,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.98ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 48.0MB in the beginning and 79.4MB in the end (delta: -31.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.08ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 77.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 79.31ms. Allocated memory is still 104.9MB. Free memory was 77.4MB in the beginning and 75.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 784.36ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 52.3MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. 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. [2021-11-23 15:05:32,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu --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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:34,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:34,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:34,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:34,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:34,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:34,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:34,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:34,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:35,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:35,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:35,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:35,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:35,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:35,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:35,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:35,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:35,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:35,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:35,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:35,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:35,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:35,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:35,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:35,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:35,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:35,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:35,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:35,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:35,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:35,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:35,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:35,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:35,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:35,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:35,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:35,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:35,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:35,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:35,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:35,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:35,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:05:35,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:35,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:35,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:35,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:35,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:35,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:35,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:35,102 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:35,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:35,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:35,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:35,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:35,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:35,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:05:35,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:05:35,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:05:35,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:35,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:35,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:35,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:35,105 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:35,105 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:35,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:35,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:35,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:35,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:35,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:35,106 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:05:35,107 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:05:35,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:35,107 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:05:35,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:05:35,108 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-23 15:05:35,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:35,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:35,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:35,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:35,519 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:35,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-23 15:05:35,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/c0428d952/839b9e14b6c448e09d2ed0d12f5067d8/FLAGc840182b9 [2021-11-23 15:05:36,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:36,092 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-23 15:05:36,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/c0428d952/839b9e14b6c448e09d2ed0d12f5067d8/FLAGc840182b9 [2021-11-23 15:05:36,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/data/c0428d952/839b9e14b6c448e09d2ed0d12f5067d8 [2021-11-23 15:05:36,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:36,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:36,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:36,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:36,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:36,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:36,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5134679a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36, skipping insertion in model container [2021-11-23 15:05:36,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:36,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:36,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:36,823 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-23 15:05:36,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:36,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 15:05:36,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:36,912 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-23 15:05:36,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:36,923 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:36,956 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_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-23 15:05:36,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:36,980 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:36,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36 WrapperNode [2021-11-23 15:05:36,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:36,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:36,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:36,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:36,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,028 INFO L137 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 109 [2021-11-23 15:05:37,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:37,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:37,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:37,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:37,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:37,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:37,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:37,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:37,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:36" (1/1) ... [2021-11-23 15:05:37,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:37,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:37,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:37,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:05:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure create_fresh_int_array [2021-11-23 15:05:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure create_fresh_int_array [2021-11-23 15:05:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:05:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 15:05:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 15:05:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 15:05:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 15:05:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 15:05:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 15:05:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 15:05:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 15:05:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:05:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:05:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2021-11-23 15:05:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2021-11-23 15:05:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:05:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:05:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:05:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:05:37,183 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:05:37,295 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:37,297 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:37,886 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:38,055 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) [2021-11-23 15:05:38,062 INFO L158 Benchmark]: Toolchain (without parser) took 1596.94ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 36.7MB in the end (delta: 10.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:38,064 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:38,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 516.21ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 48.1MB in the end (delta: -624.3kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:05:38,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.75ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 46.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:38,068 INFO L158 Benchmark]: Boogie Preprocessor took 54.35ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:38,069 INFO L158 Benchmark]: RCFGBuilder took 975.73ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 36.7MB in the end (delta: 7.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:05:38,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 50.3MB. Free memory was 30.3MB in the beginning and 30.2MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 516.21ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 48.1MB in the end (delta: -624.3kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.75ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 46.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.35ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 975.73ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 36.7MB in the end (delta: 7.6MB). Peak memory consumption was 16.8MB. 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. [2021-11-23 15:05:38,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a831c2c4-e4ab-4fa4-b0b7-d5f4b0bcb527/bin/ukojak-CwSLpZB5Qu/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: Set is immutable