./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:22:09,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:22:09,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:22:09,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:22:09,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:22:09,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:22:09,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:22:09,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:22:09,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:22:09,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:22:09,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:22:09,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:22:09,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:22:09,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:22:09,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:22:09,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:22:09,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:22:09,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:22:09,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:22:09,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:22:09,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:22:09,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:22:09,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:22:09,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:22:09,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:22:09,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:22:09,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:22:09,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:22:09,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:22:09,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:22:09,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:22:09,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:22:09,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:22:09,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:22:09,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:22:09,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:22:09,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:22:09,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:22:09,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:22:09,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:22:09,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:22:09,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:22:09,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:22:09,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:22:09,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:22:09,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:22:09,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:22:09,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:22:09,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:22:09,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:22:09,402 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:22:09,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:22:09,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:22:09,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:22:09,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:22:09,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:22:09,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:22:09,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:22:09,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:09,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:22:09,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:22:09,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:22:09,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:22:09,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:22:09,407 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:22:09,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:22:09,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:22:09,407 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_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2022-11-21 17:22:09,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:22:09,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:22:09,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:22:09,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:22:09,804 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:22:09,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-21 17:22:13,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:22:13,495 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:22:13,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-21 17:22:13,504 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/data/49a95d75b/12751927f75a4a7d836be83b9d4a3af5/FLAG93556f700 [2022-11-21 17:22:13,529 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/data/49a95d75b/12751927f75a4a7d836be83b9d4a3af5 [2022-11-21 17:22:13,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:22:13,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:22:13,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:13,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:22:13,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:22:13,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:13" (1/1) ... [2022-11-21 17:22:13,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0d5f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:13, skipping insertion in model container [2022-11-21 17:22:13,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:13" (1/1) ... [2022-11-21 17:22:13,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:22:13,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:22:13,933 WARN L237 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_c9762af9-5b55-4df8-9955-d60b942cc51d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-21 17:22:13,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:13,955 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:22:14,021 WARN L237 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_c9762af9-5b55-4df8-9955-d60b942cc51d/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-21 17:22:14,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:14,049 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:22:14,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14 WrapperNode [2022-11-21 17:22:14,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:14,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:14,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:22:14,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:22:14,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,100 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 408 [2022-11-21 17:22:14,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:14,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:22:14,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:22:14,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:22:14,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:22:14,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:22:14,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:22:14,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:22:14,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (1/1) ... [2022-11-21 17:22:14,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:14,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:14,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:22:14,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9762af9-5b55-4df8-9955-d60b942cc51d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:22:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:22:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 17:22:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 17:22:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 17:22:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 17:22:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 17:22:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 17:22:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-21 17:22:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-21 17:22:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:22:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:22:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:22:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 17:22:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 17:22:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:22:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:22:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:22:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:22:14,233 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:22:14,349 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:22:14,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:15,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:15,254 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:15,254 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:22:15,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:15 BoogieIcfgContainer [2022-11-21 17:22:15,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:15,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:15,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:15,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:15,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:22:13" (1/3) ... [2022-11-21 17:22:15,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e97a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:15, skipping insertion in model container [2022-11-21 17:22:15,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:14" (2/3) ... [2022-11-21 17:22:15,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e97a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:15, skipping insertion in model container [2022-11-21 17:22:15,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:15" (3/3) ... [2022-11-21 17:22:15,266 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-11-21 17:22:15,276 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:22:15,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:15,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-21 17:22:15,288 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:22:15,407 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-21 17:22:15,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 217 transitions, 466 flow [2022-11-21 17:22:15,523 INFO L130 PetriNetUnfolder]: 2/213 cut-off events. [2022-11-21 17:22:15,524 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-21 17:22:15,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 213 events. 2/213 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 285 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-11-21 17:22:15,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 217 transitions, 466 flow [2022-11-21 17:22:15,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 190 transitions, 401 flow [2022-11-21 17:22:15,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:15,563 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a4c2b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:15,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-21 17:22:15,595 INFO L130 PetriNetUnfolder]: 1/85 cut-off events. [2022-11-21 17:22:15,595 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:22:15,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:22:15,596 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:15,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-11-21 17:22:15,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:15,601 INFO L85 PathProgramCache]: Analyzing trace with hash -143893150, now seen corresponding path program 1 times [2022-11-21 17:22:15,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:15,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679649805] [2022-11-21 17:22:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:15,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:16,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:16,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679649805] [2022-11-21 17:22:16,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679649805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:16,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:16,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:22:16,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869044216] [2022-11-21 17:22:16,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:16,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:22:16,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:16,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:22:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:22:16,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 217 [2022-11-21 17:22:16,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 190 transitions, 401 flow. Second operand has 8 states, 8 states have (on average 130.125) internal successors, (1041), 8 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:22:16,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:22:16,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 217 [2022-11-21 17:22:16,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand