./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8 --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-2329fc7 [2022-12-13 13:37:28,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:37:28,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:37:28,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:37:28,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:37:28,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:37:28,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:37:28,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:37:28,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:37:28,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:37:28,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:37:28,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:37:28,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:37:28,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:37:28,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:37:28,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:37:28,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:37:28,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:37:28,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:37:28,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:37:28,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:37:28,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:37:28,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:37:28,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:37:28,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:37:28,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:37:28,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:37:28,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:37:28,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:37:28,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:37:28,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:37:28,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:37:28,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:37:28,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:37:28,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:37:28,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:37:28,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:37:28,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:37:28,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:37:28,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:37:28,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:37:28,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:37:28,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:37:28,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:37:28,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:37:28,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:37:28,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:37:28,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:37:28,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:37:28,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:37:28,313 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:37:28,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:37:28,313 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:37:28,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:37:28,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:37:28,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:37:28,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:37:28,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:37:28,316 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-12-13 13:37:28,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:37:28,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:37:28,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:37:28,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:37:28,498 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:37:28,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-13 13:37:31,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:37:31,223 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:37:31,223 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-13 13:37:31,228 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/data/5af16853a/312373aba6534c7f9b5dd56899bcfe0a/FLAG330323257 [2022-12-13 13:37:31,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/data/5af16853a/312373aba6534c7f9b5dd56899bcfe0a [2022-12-13 13:37:31,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:37:31,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:37:31,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:37:31,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:37:31,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:37:31,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ab6a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31, skipping insertion in model container [2022-12-13 13:37:31,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:37:31,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:37:31,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,396 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_56061ded-b1b1-41f2-b5e8-4b5137bb4969/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-13 13:37:31,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:37:31,408 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:37:31,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:31,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:31,431 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_56061ded-b1b1-41f2-b5e8-4b5137bb4969/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-13 13:37:31,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:37:31,446 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:37:31,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31 WrapperNode [2022-12-13 13:37:31,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:37:31,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:37:31,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:37:31,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:37:31,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,489 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 357 [2022-12-13 13:37:31,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:37:31,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:37:31,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:37:31,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:37:31,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,512 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:37:31,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:37:31,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:37:31,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:37:31,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (1/1) ... [2022-12-13 13:37:31,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:37:31,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:37:31,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:37:31,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:37:31,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:37:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:37:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 13:37:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 13:37:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 13:37:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 13:37:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-13 13:37:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:37:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:37:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:37:31,578 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:37:31,676 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:37:31,678 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:37:32,185 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:37:32,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:37:32,500 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 13:37:32,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:37:32 BoogieIcfgContainer [2022-12-13 13:37:32,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:37:32,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:37:32,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:37:32,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:37:32,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:37:31" (1/3) ... [2022-12-13 13:37:32,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77590212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:37:32, skipping insertion in model container [2022-12-13 13:37:32,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:31" (2/3) ... [2022-12-13 13:37:32,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77590212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:37:32, skipping insertion in model container [2022-12-13 13:37:32,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:37:32" (3/3) ... [2022-12-13 13:37:32,510 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-12-13 13:37:32,517 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:37:32,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:37:32,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-12-13 13:37:32,525 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:37:32,668 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-13 13:37:32,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 299 transitions, 670 flow [2022-12-13 13:37:32,777 INFO L130 PetriNetUnfolder]: 18/271 cut-off events. [2022-12-13 13:37:32,777 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 13:37:32,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 271 events. 18/271 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 495 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 232. Up to 3 conditions per place. [2022-12-13 13:37:32,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 299 transitions, 670 flow [2022-12-13 13:37:32,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 252 transitions, 549 flow [2022-12-13 13:37:32,790 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:37:32,798 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 252 transitions, 549 flow [2022-12-13 13:37:32,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 252 transitions, 549 flow [2022-12-13 13:37:32,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 252 transitions, 549 flow [2022-12-13 13:37:32,836 INFO L130 PetriNetUnfolder]: 17/252 cut-off events. [2022-12-13 13:37:32,836 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 13:37:32,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 252 events. 17/252 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 493 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 232. Up to 3 conditions per place. [2022-12-13 13:37:32,842 INFO L119 LiptonReduction]: Number of co-enabled transitions 12848 [2022-12-13 13:37:38,875 INFO L134 LiptonReduction]: Checked pairs total: 78079 [2022-12-13 13:37:38,875 INFO L136 LiptonReduction]: Total number of compositions: 195 [2022-12-13 13:37:38,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:37:38,890 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;@54fae32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:37:38,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2022-12-13 13:37:38,891 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:37:38,891 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:37:38,891 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:37:38,891 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:37:38,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-12-13 13:37:38,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:37:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1691, now seen corresponding path program 1 times [2022-12-13 13:37:38,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:37:38,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73094443] [2022-12-13 13:37:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:37:38,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:37:38,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:37:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:37:38,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:37:38,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73094443] [2022-12-13 13:37:38,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73094443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:37:38,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:37:38,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:37:38,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134737528] [2022-12-13 13:37:38,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:37:38,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:37:38,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:37:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:37:38,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:37:39,000 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 498 [2022-12-13 13:37:39,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 99 transitions, 243 flow. Second operand has 2 states, 2 states have (on average 223.5) internal successors, (447), 2 states have internal predecessors, (447), 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) [2022-12-13 13:37:39,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:37:39,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 498 [2022-12-13 13:37:39,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:38:22,515 INFO L130 PetriNetUnfolder]: 332086/417294 cut-off events. [2022-12-13 13:38:22,515 INFO L131 PetriNetUnfolder]: For 27658/27658 co-relation queries the response was YES. [2022-12-13 13:38:23,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857224 conditions, 417294 events. 332086/417294 cut-off events. For 27658/27658 co-relation queries the response was YES. Maximal size of possible extension queue 15851. Compared 2466943 event pairs, 293865 based on Foata normal form. 0/194437 useless extension candidates. Maximal degree in co-relation 854256. Up to 408139 conditions per place. [2022-12-13 13:38:24,693 INFO L137 encePairwiseOnDemand]: 488/498 looper letters, 69 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2022-12-13 13:38:24,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 89 transitions, 361 flow [2022-12-13 13:38:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:38:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:38:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 525 transitions. [2022-12-13 13:38:24,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5271084337349398 [2022-12-13 13:38:24,706 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 525 transitions. [2022-12-13 13:38:24,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 525 transitions. [2022-12-13 13:38:24,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:38:24,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 525 transitions. [2022-12-13 13:38:24,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 262.5) internal successors, (525), 2 states have internal predecessors, (525), 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) [2022-12-13 13:38:24,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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) [2022-12-13 13:38:24,717 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 498.0) internal successors, (1494), 3 states have internal predecessors, (1494), 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) [2022-12-13 13:38:24,718 INFO L175 Difference]: Start difference. First operand has 109 places, 99 transitions, 243 flow. Second operand 2 states and 525 transitions. [2022-12-13 13:38:24,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 89 transitions, 361 flow [2022-12-13 13:38:47,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 89 transitions, 332 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-13 13:38:47,176 INFO L231 Difference]: Finished difference. Result has 89 places, 89 transitions, 194 flow [2022-12-13 13:38:47,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=89, PETRI_TRANSITIONS=89} [2022-12-13 13:38:47,180 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -20 predicate places. [2022-12-13 13:38:47,181 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 194 flow [2022-12-13 13:38:47,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 223.5) internal successors, (447), 2 states have internal predecessors, (447), 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) [2022-12-13 13:38:47,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:38:47,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:38:47,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:38:47,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-12-13 13:38:47,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:38:47,182 INFO L85 PathProgramCache]: Analyzing trace with hash 54125, now seen corresponding path program 1 times [2022-12-13 13:38:47,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:38:47,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408673713] [2022-12-13 13:38:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:38:47,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:38:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:38:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:38:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:38:47,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408673713] [2022-12-13 13:38:47,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408673713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:38:47,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:38:47,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:38:47,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446766268] [2022-12-13 13:38:47,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:38:47,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:38:47,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:38:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:38:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:38:47,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 498 [2022-12-13 13:38:47,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2022-12-13 13:38:47,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:38:47,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 498 [2022-12-13 13:38:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:40:14,681 INFO L130 PetriNetUnfolder]: 664171/836205 cut-off events. [2022-12-13 13:40:14,681 INFO L131 PetriNetUnfolder]: For 11698/11698 co-relation queries the response was YES. [2022-12-13 13:40:15,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668859 conditions, 836205 events. 664171/836205 cut-off events. For 11698/11698 co-relation queries the response was YES. Maximal size of possible extension queue 30770. Compared 5300359 event pairs, 587730 based on Foata normal form. 0/390655 useless extension candidates. Maximal degree in co-relation 1668856. Up to 408139 conditions per place. [2022-12-13 13:40:18,553 INFO L137 encePairwiseOnDemand]: 494/498 looper letters, 133 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2022-12-13 13:40:18,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 155 transitions, 612 flow [2022-12-13 13:40:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:40:18,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:40:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2022-12-13 13:40:18,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5334672021419009 [2022-12-13 13:40:18,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2022-12-13 13:40:18,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2022-12-13 13:40:18,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:40:18,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2022-12-13 13:40:18,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 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) [2022-12-13 13:40:18,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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) [2022-12-13 13:40:18,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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) [2022-12-13 13:40:18,562 INFO L175 Difference]: Start difference. First operand has 89 places, 89 transitions, 194 flow. Second operand 3 states and 797 transitions. [2022-12-13 13:40:18,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 155 transitions, 612 flow [2022-12-13 13:40:18,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 155 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:40:18,565 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 208 flow [2022-12-13 13:40:18,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2022-12-13 13:40:18,566 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2022-12-13 13:40:18,566 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 208 flow [2022-12-13 13:40:18,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2022-12-13 13:40:18,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:40:18,567 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 13:40:18,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:40:18,567 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 75 more)] === [2022-12-13 13:40:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:40:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1679486, now seen corresponding path program 1 times [2022-12-13 13:40:18,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:40:18,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777119591] [2022-12-13 13:40:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:40:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:40:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:40:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:40:18,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:40:18,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777119591] [2022-12-13 13:40:18,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777119591] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:40:18,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038839476] [2022-12-13 13:40:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:40:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:40:18,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:40:18,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:40:18,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56061ded-b1b1-41f2-b5e8-4b5137bb4969/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:40:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:40:18,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:40:18,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:40:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:40:18,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:40:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:40:18,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038839476] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:40:18,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:40:18,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 13:40:18,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489359090] [2022-12-13 13:40:18,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:40:18,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:40:18,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:40:18,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:40:18,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:40:18,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 498 [2022-12-13 13:40:18,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 208 flow. Second operand has 7 states, 7 states have (on average 221.14285714285714) internal successors, (1548), 7 states have internal predecessors, (1548), 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) [2022-12-13 13:40:18,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:40:18,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 498 [2022-12-13 13:40:18,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand