./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa --- 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-38b53e6 [2022-11-25 17:40:29,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:29,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:29,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:29,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:29,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:29,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:29,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:29,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:29,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:29,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:29,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:29,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:29,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:29,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:29,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:29,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:29,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:29,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:29,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:29,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:29,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:29,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:29,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:29,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:29,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:29,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:29,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:29,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:29,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:29,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:29,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:29,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:29,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:29,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:29,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:29,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:29,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:29,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:29,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:29,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:29,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:40:29,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:29,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:29,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:29,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:29,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:29,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:29,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:29,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:29,334 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:29,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:29,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:40:29,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:40:29,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:29,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:40:29,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:29,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:29,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:29,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:29,337 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:40:29,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:40:29,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:29,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:29,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:29,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:29,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:29,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:29,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:29,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:29,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:29,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:29,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:29,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:29,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:29,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:29,341 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:29,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:29,342 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_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6872adb14a2dfa535a444bb6d903bd37f60f26cf718935f2927b47d5c5a6aaa [2022-11-25 17:40:29,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:29,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:29,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:29,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:29,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:29,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2022-11-25 17:40:32,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:33,032 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:33,033 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2022-11-25 17:40:33,040 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/data/357400ff4/74cd9826d2e8474ea108f27ae9c9c465/FLAG373438b3d [2022-11-25 17:40:33,055 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/data/357400ff4/74cd9826d2e8474ea108f27ae9c9c465 [2022-11-25 17:40:33,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:33,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:33,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:33,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:33,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:33,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63aec325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33, skipping insertion in model container [2022-11-25 17:40:33,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:33,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:33,264 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,328 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_f50021dd-d69f-4004-b36b-d2861ff3a1df/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-11-25 17:40:33,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:33,344 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:33,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:40:33,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:40:33,380 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_f50021dd-d69f-4004-b36b-d2861ff3a1df/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c[3042,3055] [2022-11-25 17:40:33,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:33,397 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:33,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33 WrapperNode [2022-11-25 17:40:33,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:33,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:33,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:33,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:33,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,465 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 325 [2022-11-25 17:40:33,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:33,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:33,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:33,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:33,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:33,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:33,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:33,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:33,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (1/1) ... [2022-11-25 17:40:33,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:33,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:33,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:33,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:40:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:40:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:40:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:40:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:40:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:40:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:40:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:40:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 17:40:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 17:40:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:40:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:40:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:40:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:40:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:40:33,646 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:40:33,852 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:33,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:34,483 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:34,840 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:34,841 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:40:34,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:34 BoogieIcfgContainer [2022-11-25 17:40:34,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:34,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:34,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:34,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:34,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:33" (1/3) ... [2022-11-25 17:40:34,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cf98a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:34, skipping insertion in model container [2022-11-25 17:40:34,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:33" (2/3) ... [2022-11-25 17:40:34,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cf98a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:34, skipping insertion in model container [2022-11-25 17:40:34,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:34" (3/3) ... [2022-11-25 17:40:34,853 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2022-11-25 17:40:34,862 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:40:34,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:34,873 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-11-25 17:40:34,873 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:40:34,976 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 17:40:35,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 276 transitions, 576 flow [2022-11-25 17:40:35,179 INFO L130 PetriNetUnfolder]: 9/273 cut-off events. [2022-11-25 17:40:35,179 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:40:35,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 273 events. 9/273 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 336 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 183. Up to 2 conditions per place. [2022-11-25 17:40:35,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 277 places, 276 transitions, 576 flow [2022-11-25 17:40:35,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 253 transitions, 524 flow [2022-11-25 17:40:35,204 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:40:35,221 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 253 transitions, 524 flow [2022-11-25 17:40:35,224 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 253 transitions, 524 flow [2022-11-25 17:40:35,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 253 transitions, 524 flow [2022-11-25 17:40:35,330 INFO L130 PetriNetUnfolder]: 8/253 cut-off events. [2022-11-25 17:40:35,330 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:40:35,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 253 events. 8/253 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 332 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 183. Up to 2 conditions per place. [2022-11-25 17:40:35,341 INFO L119 LiptonReduction]: Number of co-enabled transitions 9612 [2022-11-25 17:40:49,338 INFO L134 LiptonReduction]: Checked pairs total: 47241 [2022-11-25 17:40:49,338 INFO L136 LiptonReduction]: Total number of compositions: 247 [2022-11-25 17:40:49,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:49,362 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;@59c928a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:49,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-11-25 17:40:49,364 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:40:49,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:49,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:49,366 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:40:49,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:49,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1278, now seen corresponding path program 1 times [2022-11-25 17:40:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:49,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459091824] [2022-11-25 17:40:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:49,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:49,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459091824] [2022-11-25 17:40:49,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459091824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:49,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:49,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:40:49,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460844626] [2022-11-25 17:40:49,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:49,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:40:49,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:49,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:40:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:40:49,556 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 523 [2022-11-25 17:40:49,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 204 flow. Second operand has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 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) [2022-11-25 17:40:49,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:49,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 523 [2022-11-25 17:40:49,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:50,121 INFO L130 PetriNetUnfolder]: 1096/2009 cut-off events. [2022-11-25 17:40:50,121 INFO L131 PetriNetUnfolder]: For 122/122 co-relation queries the response was YES. [2022-11-25 17:40:50,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3672 conditions, 2009 events. 1096/2009 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11456 event pairs, 888 based on Foata normal form. 208/1894 useless extension candidates. Maximal degree in co-relation 2903. Up to 1581 conditions per place. [2022-11-25 17:40:50,142 INFO L137 encePairwiseOnDemand]: 481/523 looper letters, 30 selfloop transitions, 0 changer transitions 1/51 dead transitions. [2022-11-25 17:40:50,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 182 flow [2022-11-25 17:40:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:40:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:40:50,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 543 transitions. [2022-11-25 17:40:50,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5191204588910134 [2022-11-25 17:40:50,173 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 543 transitions. [2022-11-25 17:40:50,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 543 transitions. [2022-11-25 17:40:50,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:50,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 543 transitions. [2022-11-25 17:40:50,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 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) [2022-11-25 17:40:50,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 523.0) internal successors, (1569), 3 states have internal predecessors, (1569), 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) [2022-11-25 17:40:50,207 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 523.0) internal successors, (1569), 3 states have internal predecessors, (1569), 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) [2022-11-25 17:40:50,210 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 204 flow. Second operand 2 states and 543 transitions. [2022-11-25 17:40:50,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 182 flow [2022-11-25 17:40:50,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 170 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 17:40:50,221 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 105 flow [2022-11-25 17:40:50,224 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=105, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2022-11-25 17:40:50,230 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -45 predicate places. [2022-11-25 17:40:50,231 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 105 flow [2022-11-25 17:40:50,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 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) [2022-11-25 17:40:50,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:50,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:50,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:50,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:50,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:50,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1480901908, now seen corresponding path program 1 times [2022-11-25 17:40:50,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:50,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275957176] [2022-11-25 17:40:50,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:50,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:50,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:50,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:50,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275957176] [2022-11-25 17:40:50,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275957176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:50,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:50,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:51,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834613922] [2022-11-25 17:40:51,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:51,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:51,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 523 [2022-11-25 17:40:51,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 226.2) internal successors, (1131), 5 states have internal predecessors, (1131), 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) [2022-11-25 17:40:51,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:51,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 523 [2022-11-25 17:40:51,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:51,967 INFO L130 PetriNetUnfolder]: 1736/2774 cut-off events. [2022-11-25 17:40:51,968 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 17:40:51,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5241 conditions, 2774 events. 1736/2774 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 14924 event pairs, 207 based on Foata normal form. 112/2520 useless extension candidates. Maximal degree in co-relation 5238. Up to 1143 conditions per place. [2022-11-25 17:40:51,988 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 71 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2022-11-25 17:40:51,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 91 transitions, 335 flow [2022-11-25 17:40:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1195 transitions. [2022-11-25 17:40:51,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4569789674952199 [2022-11-25 17:40:51,994 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1195 transitions. [2022-11-25 17:40:51,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1195 transitions. [2022-11-25 17:40:51,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:51,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1195 transitions. [2022-11-25 17:40:51,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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) [2022-11-25 17:40:52,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:52,008 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:52,008 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 105 flow. Second operand 5 states and 1195 transitions. [2022-11-25 17:40:52,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 91 transitions, 335 flow [2022-11-25 17:40:52,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 91 transitions, 335 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:40:52,012 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 109 flow [2022-11-25 17:40:52,012 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2022-11-25 17:40:52,013 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -43 predicate places. [2022-11-25 17:40:52,014 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 109 flow [2022-11-25 17:40:52,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 226.2) internal successors, (1131), 5 states have internal predecessors, (1131), 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) [2022-11-25 17:40:52,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:52,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:52,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:40:52,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:52,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1272906824, now seen corresponding path program 1 times [2022-11-25 17:40:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:52,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802989830] [2022-11-25 17:40:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:52,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:52,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802989830] [2022-11-25 17:40:52,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802989830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:52,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:52,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106960331] [2022-11-25 17:40:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:52,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:40:52,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:52,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:40:52,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:40:52,331 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 523 [2022-11-25 17:40:52,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 231.5) internal successors, (926), 4 states have internal predecessors, (926), 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) [2022-11-25 17:40:52,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:52,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 523 [2022-11-25 17:40:52,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:52,703 INFO L130 PetriNetUnfolder]: 846/1715 cut-off events. [2022-11-25 17:40:52,703 INFO L131 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-11-25 17:40:52,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3177 conditions, 1715 events. 846/1715 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9546 event pairs, 668 based on Foata normal form. 44/1551 useless extension candidates. Maximal degree in co-relation 3173. Up to 1148 conditions per place. [2022-11-25 17:40:52,715 INFO L137 encePairwiseOnDemand]: 517/523 looper letters, 28 selfloop transitions, 2 changer transitions 13/63 dead transitions. [2022-11-25 17:40:52,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 228 flow [2022-11-25 17:40:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:40:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:40:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 962 transitions. [2022-11-25 17:40:52,719 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4598470363288719 [2022-11-25 17:40:52,719 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 962 transitions. [2022-11-25 17:40:52,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 962 transitions. [2022-11-25 17:40:52,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:52,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 962 transitions. [2022-11-25 17:40:52,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 240.5) internal successors, (962), 4 states have internal predecessors, (962), 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) [2022-11-25 17:40:52,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 523.0) internal successors, (2615), 5 states have internal predecessors, (2615), 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) [2022-11-25 17:40:52,730 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 523.0) internal successors, (2615), 5 states have internal predecessors, (2615), 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) [2022-11-25 17:40:52,731 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 109 flow. Second operand 4 states and 962 transitions. [2022-11-25 17:40:52,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 228 flow [2022-11-25 17:40:52,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 63 transitions, 221 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:52,736 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 122 flow [2022-11-25 17:40:52,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2022-11-25 17:40:52,738 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -41 predicate places. [2022-11-25 17:40:52,738 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 122 flow [2022-11-25 17:40:52,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 231.5) internal successors, (926), 4 states have internal predecessors, (926), 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) [2022-11-25 17:40:52,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:52,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:52,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:40:52,740 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1747659388, now seen corresponding path program 1 times [2022-11-25 17:40:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:52,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997019009] [2022-11-25 17:40:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:52,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:52,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997019009] [2022-11-25 17:40:52,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997019009] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:52,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957427841] [2022-11-25 17:40:52,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:52,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:52,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:52,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:40:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:53,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:40:53,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:53,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:53,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957427841] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:53,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:40:53,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-11-25 17:40:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561060647] [2022-11-25 17:40:53,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:53,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:40:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:40:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:40:53,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 523 [2022-11-25 17:40:53,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 122 flow. Second operand has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 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) [2022-11-25 17:40:53,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:53,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 523 [2022-11-25 17:40:53,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:53,821 INFO L130 PetriNetUnfolder]: 909/1904 cut-off events. [2022-11-25 17:40:53,822 INFO L131 PetriNetUnfolder]: For 245/245 co-relation queries the response was YES. [2022-11-25 17:40:53,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3600 conditions, 1904 events. 909/1904 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 11226 event pairs, 720 based on Foata normal form. 47/1732 useless extension candidates. Maximal degree in co-relation 3594. Up to 1148 conditions per place. [2022-11-25 17:40:53,834 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 48 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2022-11-25 17:40:53,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 283 flow [2022-11-25 17:40:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1188 transitions. [2022-11-25 17:40:53,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.454302103250478 [2022-11-25 17:40:53,838 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1188 transitions. [2022-11-25 17:40:53,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1188 transitions. [2022-11-25 17:40:53,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:53,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1188 transitions. [2022-11-25 17:40:53,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 237.6) internal successors, (1188), 5 states have internal predecessors, (1188), 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) [2022-11-25 17:40:53,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:53,849 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:53,849 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 122 flow. Second operand 5 states and 1188 transitions. [2022-11-25 17:40:53,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 283 flow [2022-11-25 17:40:53,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 279 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:53,852 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 144 flow [2022-11-25 17:40:53,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2022-11-25 17:40:53,853 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -37 predicate places. [2022-11-25 17:40:53,853 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 144 flow [2022-11-25 17:40:53,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 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) [2022-11-25 17:40:53,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:53,855 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:53,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:40:54,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:54,067 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:54,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:54,067 INFO L85 PathProgramCache]: Analyzing trace with hash -895931448, now seen corresponding path program 2 times [2022-11-25 17:40:54,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:54,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583140916] [2022-11-25 17:40:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:40:54,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:54,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583140916] [2022-11-25 17:40:54,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583140916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:54,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:54,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954832500] [2022-11-25 17:40:54,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:54,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:54,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:54,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:54,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:54,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 523 [2022-11-25 17:40:54,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 225.6) internal successors, (1128), 5 states have internal predecessors, (1128), 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) [2022-11-25 17:40:54,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:54,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 523 [2022-11-25 17:40:54,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:55,210 INFO L130 PetriNetUnfolder]: 1016/1882 cut-off events. [2022-11-25 17:40:55,210 INFO L131 PetriNetUnfolder]: For 309/309 co-relation queries the response was YES. [2022-11-25 17:40:55,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3794 conditions, 1882 events. 1016/1882 cut-off events. For 309/309 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 10013 event pairs, 280 based on Foata normal form. 47/1702 useless extension candidates. Maximal degree in co-relation 3786. Up to 616 conditions per place. [2022-11-25 17:40:55,224 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 75 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2022-11-25 17:40:55,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 96 transitions, 406 flow [2022-11-25 17:40:55,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:55,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1191 transitions. [2022-11-25 17:40:55,230 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4554493307839388 [2022-11-25 17:40:55,230 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1191 transitions. [2022-11-25 17:40:55,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1191 transitions. [2022-11-25 17:40:55,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:55,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1191 transitions. [2022-11-25 17:40:55,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 238.2) internal successors, (1191), 5 states have internal predecessors, (1191), 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) [2022-11-25 17:40:55,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:55,244 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:55,244 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 144 flow. Second operand 5 states and 1191 transitions. [2022-11-25 17:40:55,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 96 transitions, 406 flow [2022-11-25 17:40:55,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 396 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-25 17:40:55,250 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 138 flow [2022-11-25 17:40:55,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=138, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2022-11-25 17:40:55,254 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -36 predicate places. [2022-11-25 17:40:55,254 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 138 flow [2022-11-25 17:40:55,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 225.6) internal successors, (1128), 5 states have internal predecessors, (1128), 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) [2022-11-25 17:40:55,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:55,256 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:55,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:40:55,257 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:55,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:55,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1000511664, now seen corresponding path program 1 times [2022-11-25 17:40:55,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:55,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723139523] [2022-11-25 17:40:55,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:55,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:40:55,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:55,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723139523] [2022-11-25 17:40:55,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723139523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:55,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:55,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:55,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690852107] [2022-11-25 17:40:55,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:55,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:55,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:55,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:55,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:56,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 523 [2022-11-25 17:40:56,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 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) [2022-11-25 17:40:56,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:56,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 523 [2022-11-25 17:40:56,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:56,757 INFO L130 PetriNetUnfolder]: 909/1715 cut-off events. [2022-11-25 17:40:56,757 INFO L131 PetriNetUnfolder]: For 306/306 co-relation queries the response was YES. [2022-11-25 17:40:56,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3568 conditions, 1715 events. 909/1715 cut-off events. For 306/306 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 9160 event pairs, 368 based on Foata normal form. 47/1547 useless extension candidates. Maximal degree in co-relation 3560. Up to 755 conditions per place. [2022-11-25 17:40:56,769 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 74 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2022-11-25 17:40:56,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 95 transitions, 398 flow [2022-11-25 17:40:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:56,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1190 transitions. [2022-11-25 17:40:56,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45506692160611856 [2022-11-25 17:40:56,774 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1190 transitions. [2022-11-25 17:40:56,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1190 transitions. [2022-11-25 17:40:56,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:56,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1190 transitions. [2022-11-25 17:40:56,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 238.0) internal successors, (1190), 5 states have internal predecessors, (1190), 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) [2022-11-25 17:40:56,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:56,785 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:56,785 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 138 flow. Second operand 5 states and 1190 transitions. [2022-11-25 17:40:56,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 95 transitions, 398 flow [2022-11-25 17:40:56,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 95 transitions, 393 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:56,789 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 137 flow [2022-11-25 17:40:56,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2022-11-25 17:40:56,790 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -36 predicate places. [2022-11-25 17:40:56,790 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 137 flow [2022-11-25 17:40:56,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 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) [2022-11-25 17:40:56,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:56,792 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] [2022-11-25 17:40:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:40:56,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1965309937, now seen corresponding path program 1 times [2022-11-25 17:40:56,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352842439] [2022-11-25 17:40:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:56,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:57,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:40:57,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:57,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352842439] [2022-11-25 17:40:57,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352842439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:57,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:57,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:57,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97462934] [2022-11-25 17:40:57,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:57,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:57,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:57,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:57,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:57,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 523 [2022-11-25 17:40:57,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 227.4) internal successors, (1137), 5 states have internal predecessors, (1137), 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) [2022-11-25 17:40:57,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:57,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 523 [2022-11-25 17:40:57,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:57,910 INFO L130 PetriNetUnfolder]: 775/1564 cut-off events. [2022-11-25 17:40:57,911 INFO L131 PetriNetUnfolder]: For 323/323 co-relation queries the response was YES. [2022-11-25 17:40:57,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3271 conditions, 1564 events. 775/1564 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8658 event pairs, 464 based on Foata normal form. 24/1403 useless extension candidates. Maximal degree in co-relation 3263. Up to 905 conditions per place. [2022-11-25 17:40:57,924 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 53 selfloop transitions, 3 changer transitions 0/73 dead transitions. [2022-11-25 17:40:57,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 73 transitions, 319 flow [2022-11-25 17:40:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1174 transitions. [2022-11-25 17:40:57,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44894837476099425 [2022-11-25 17:40:57,929 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1174 transitions. [2022-11-25 17:40:57,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1174 transitions. [2022-11-25 17:40:57,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:57,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1174 transitions. [2022-11-25 17:40:57,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 234.8) internal successors, (1174), 5 states have internal predecessors, (1174), 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) [2022-11-25 17:40:57,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:57,939 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:40:57,939 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 137 flow. Second operand 5 states and 1174 transitions. [2022-11-25 17:40:57,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 73 transitions, 319 flow [2022-11-25 17:40:57,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 73 transitions, 308 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:57,944 INFO L231 Difference]: Finished difference. Result has 62 places, 49 transitions, 136 flow [2022-11-25 17:40:57,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2022-11-25 17:40:57,946 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -36 predicate places. [2022-11-25 17:40:57,946 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 136 flow [2022-11-25 17:40:57,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.4) internal successors, (1137), 5 states have internal predecessors, (1137), 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) [2022-11-25 17:40:57,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:57,947 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] [2022-11-25 17:40:57,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:40:57,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:57,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:57,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1807017858, now seen corresponding path program 1 times [2022-11-25 17:40:57,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:57,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585096505] [2022-11-25 17:40:57,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:57,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:58,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:58,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585096505] [2022-11-25 17:40:58,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585096505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:58,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591752839] [2022-11-25 17:40:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:58,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:58,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:58,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:58,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:40:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:58,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:40:58,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:58,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:58,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591752839] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:58,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:40:58,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-25 17:40:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857037987] [2022-11-25 17:40:58,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:58,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:40:58,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:40:58,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:40:58,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 523 [2022-11-25 17:40:58,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 136 flow. Second operand has 11 states, 11 states have (on average 227.8181818181818) internal successors, (2506), 11 states have internal predecessors, (2506), 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) [2022-11-25 17:40:58,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:58,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 523 [2022-11-25 17:40:58,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:59,315 INFO L130 PetriNetUnfolder]: 646/1400 cut-off events. [2022-11-25 17:40:59,315 INFO L131 PetriNetUnfolder]: For 232/236 co-relation queries the response was YES. [2022-11-25 17:40:59,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2813 conditions, 1400 events. 646/1400 cut-off events. For 232/236 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7976 event pairs, 461 based on Foata normal form. 13/1231 useless extension candidates. Maximal degree in co-relation 2805. Up to 784 conditions per place. [2022-11-25 17:40:59,322 INFO L137 encePairwiseOnDemand]: 518/523 looper letters, 25 selfloop transitions, 3 changer transitions 28/76 dead transitions. [2022-11-25 17:40:59,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 76 transitions, 314 flow [2022-11-25 17:40:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1408 transitions. [2022-11-25 17:40:59,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4486934353091141 [2022-11-25 17:40:59,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1408 transitions. [2022-11-25 17:40:59,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1408 transitions. [2022-11-25 17:40:59,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:59,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1408 transitions. [2022-11-25 17:40:59,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.66666666666666) internal successors, (1408), 6 states have internal predecessors, (1408), 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) [2022-11-25 17:40:59,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 523.0) internal successors, (3661), 7 states have internal predecessors, (3661), 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) [2022-11-25 17:40:59,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 523.0) internal successors, (3661), 7 states have internal predecessors, (3661), 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) [2022-11-25 17:40:59,339 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 136 flow. Second operand 6 states and 1408 transitions. [2022-11-25 17:40:59,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 76 transitions, 314 flow [2022-11-25 17:40:59,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 76 transitions, 307 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:59,343 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 139 flow [2022-11-25 17:40:59,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=139, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2022-11-25 17:40:59,345 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -32 predicate places. [2022-11-25 17:40:59,346 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 139 flow [2022-11-25 17:40:59,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 227.8181818181818) internal successors, (2506), 11 states have internal predecessors, (2506), 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) [2022-11-25 17:40:59,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:59,347 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 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] [2022-11-25 17:40:59,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 17:40:59,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:59,553 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-25 17:40:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash -9321794, now seen corresponding path program 2 times [2022-11-25 17:40:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:59,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573121937] [2022-11-25 17:40:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:59,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:40:59,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:59,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573121937] [2022-11-25 17:40:59,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573121937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:59,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:59,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:40:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99565126] [2022-11-25 17:40:59,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:59,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:59,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:59,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:59,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:41:00,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 523 [2022-11-25 17:41:00,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 228.4) internal successors, (1142), 5 states have internal predecessors, (1142), 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) [2022-11-25 17:41:00,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:41:00,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 523 [2022-11-25 17:41:00,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:41:00,436 INFO L130 PetriNetUnfolder]: 534/1153 cut-off events. [2022-11-25 17:41:00,436 INFO L131 PetriNetUnfolder]: For 641/641 co-relation queries the response was YES. [2022-11-25 17:41:00,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2508 conditions, 1153 events. 534/1153 cut-off events. For 641/641 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6312 event pairs, 409 based on Foata normal form. 5/1011 useless extension candidates. Maximal degree in co-relation 2498. Up to 768 conditions per place. [2022-11-25 17:41:00,440 INFO L137 encePairwiseOnDemand]: 519/523 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2022-11-25 17:41:00,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 59 transitions, 257 flow [2022-11-25 17:41:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:41:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:41:00,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1161 transitions. [2022-11-25 17:41:00,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4439770554493308 [2022-11-25 17:41:00,445 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1161 transitions. [2022-11-25 17:41:00,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1161 transitions. [2022-11-25 17:41:00,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:41:00,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1161 transitions. [2022-11-25 17:41:00,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 232.2) internal successors, (1161), 5 states have internal predecessors, (1161), 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) [2022-11-25 17:41:00,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:41:00,472 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 523.0) internal successors, (3138), 6 states have internal predecessors, (3138), 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) [2022-11-25 17:41:00,472 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 139 flow. Second operand 5 states and 1161 transitions. [2022-11-25 17:41:00,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 59 transitions, 257 flow [2022-11-25 17:41:00,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 59 transitions, 235 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-25 17:41:00,476 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2022-11-25 17:41:00,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2022-11-25 17:41:00,477 INFO L288 CegarLoopForPetriNet]: 98 programPoint places, -38 predicate places. [2022-11-25 17:41:00,478 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2022-11-25 17:41:00,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.4) internal successors, (1142), 5 states have internal predecessors, (1142), 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) [2022-11-25 17:41:00,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-11-25 17:41:00,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-11-25 17:41:00,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-11-25 17:41:00,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-11-25 17:41:00,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-11-25 17:41:00,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-11-25 17:41:00,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-11-25 17:41:00,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-11-25 17:41:00,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-11-25 17:41:00,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-11-25 17:41:00,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-11-25 17:41:00,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-11-25 17:41:00,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-11-25 17:41:00,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-11-25 17:41:00,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-11-25 17:41:00,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-11-25 17:41:00,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-11-25 17:41:00,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-11-25 17:41:00,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-11-25 17:41:00,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-11-25 17:41:00,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-11-25 17:41:00,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-11-25 17:41:00,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-11-25 17:41:00,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-11-25 17:41:00,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-11-25 17:41:00,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-11-25 17:41:00,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-11-25 17:41:00,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (52 of 80 remaining) [2022-11-25 17:41:00,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (51 of 80 remaining) [2022-11-25 17:41:00,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-11-25 17:41:00,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-11-25 17:41:00,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-11-25 17:41:00,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-11-25 17:41:00,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-11-25 17:41:00,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-11-25 17:41:00,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-11-25 17:41:00,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-11-25 17:41:00,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-11-25 17:41:00,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-11-25 17:41:00,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-11-25 17:41:00,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-11-25 17:41:00,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-11-25 17:41:00,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-11-25 17:41:00,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-11-25 17:41:00,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-11-25 17:41:00,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 80 remaining) [2022-11-25 17:41:00,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 80 remaining) [2022-11-25 17:41:00,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 80 remaining) [2022-11-25 17:41:00,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-11-25 17:41:00,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-11-25 17:41:00,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-11-25 17:41:00,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-11-25 17:41:00,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-11-25 17:41:00,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-11-25 17:41:00,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-11-25 17:41:00,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-11-25 17:41:00,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-11-25 17:41:00,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-11-25 17:41:00,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-11-25 17:41:00,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-11-25 17:41:00,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-11-25 17:41:00,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-11-25 17:41:00,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-11-25 17:41:00,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-11-25 17:41:00,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-11-25 17:41:00,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-11-25 17:41:00,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-11-25 17:41:00,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-11-25 17:41:00,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-11-25 17:41:00,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-11-25 17:41:00,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-11-25 17:41:00,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-11-25 17:41:00,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-11-25 17:41:00,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-11-25 17:41:00,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-11-25 17:41:00,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-11-25 17:41:00,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-11-25 17:41:00,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-11-25 17:41:00,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-11-25 17:41:00,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-11-25 17:41:00,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:41:00,502 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-11-25 17:41:00,509 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:41:00,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:41:00,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:41:00 BasicIcfg [2022-11-25 17:41:00,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:41:00,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:41:00,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:41:00,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:41:00,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:34" (3/4) ... [2022-11-25 17:41:00,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:41:00,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 17:41:00,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 17:41:00,526 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 17:41:00,532 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-25 17:41:00,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 17:41:00,533 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:41:00,534 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:41:00,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:41:00,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:41:00,596 INFO L158 Benchmark]: Toolchain (without parser) took 27536.02ms. Allocated memory was 142.6MB in the beginning and 388.0MB in the end (delta: 245.4MB). Free memory was 105.8MB in the beginning and 281.7MB in the end (delta: -175.9MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,599 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:00,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.60ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 91.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.65ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,600 INFO L158 Benchmark]: Boogie Preprocessor took 44.83ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 86.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,600 INFO L158 Benchmark]: RCFGBuilder took 1332.32ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 93.0MB in the end (delta: -7.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,601 INFO L158 Benchmark]: TraceAbstraction took 25669.48ms. Allocated memory was 142.6MB in the beginning and 388.0MB in the end (delta: 245.4MB). Free memory was 92.4MB in the beginning and 285.9MB in the end (delta: -193.5MB). Peak memory consumption was 181.5MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,601 INFO L158 Benchmark]: Witness Printer took 79.58ms. Allocated memory is still 388.0MB. Free memory was 285.9MB in the beginning and 281.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:41:00,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 110.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.60ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 91.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.65ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.83ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 86.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1332.32ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 93.0MB in the end (delta: -7.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25669.48ms. Allocated memory was 142.6MB in the beginning and 388.0MB in the end (delta: 245.4MB). Free memory was 92.4MB in the beginning and 285.9MB in the end (delta: -193.5MB). Peak memory consumption was 181.5MB. Max. memory is 16.1GB. * Witness Printer took 79.58ms. Allocated memory is still 388.0MB. Free memory was 285.9MB in the beginning and 281.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 255 PlacesBefore, 98 PlacesAfterwards, 253 TransitionsBefore, 93 TransitionsAfterwards, 9612 CoEnabledTransitionPairs, 12 FixpointIterations, 140 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 247 TotalNumberOfCompositions, 47241 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17089, independent: 16292, independent conditional: 0, independent unconditional: 16292, dependent: 797, dependent conditional: 0, dependent unconditional: 797, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6213, independent: 6091, independent conditional: 0, independent unconditional: 6091, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6213, independent: 5384, independent conditional: 0, independent unconditional: 5384, dependent: 829, dependent conditional: 0, dependent unconditional: 829, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 829, independent: 707, independent conditional: 0, independent unconditional: 707, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3036, independent: 2357, independent conditional: 0, independent unconditional: 2357, dependent: 679, dependent conditional: 0, dependent unconditional: 679, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17089, independent: 10201, independent conditional: 0, independent unconditional: 10201, dependent: 675, dependent conditional: 0, dependent unconditional: 675, unknown: 6213, unknown conditional: 0, unknown unconditional: 6213] , Statistics on independence cache: Total cache size (in pairs): 1228, Positive cache size: 1174, Positive conditional cache size: 0, Positive unconditional cache size: 1174, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 121]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 109]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 360 locations, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.5s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1162 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 697 mSDsluCounter, 165 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 414 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2713 IncrementalHoareTripleChecker+Invalid, 3127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 414 mSolverCounterUnsat, 86 mSDtfsCounter, 2713 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 789 SizeOfPredicates, 10 NumberOfNonLiveVariables, 533 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 10/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 45 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:41:00,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50021dd-d69f-4004-b36b-d2861ff3a1df/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE