./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a --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 e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:24:40,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:24:40,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:24:40,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:24:40,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:24:40,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:24:40,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:24:40,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:24:40,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:24:40,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:24:40,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:24:40,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:24:40,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:24:40,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:24:40,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:24:40,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:24:40,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:24:40,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:24:40,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:24:40,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:24:40,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:24:40,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:24:40,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:24:40,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:24:40,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:24:40,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:24:40,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:24:40,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:24:40,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:24:40,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:24:40,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:24:40,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:24:40,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:24:40,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:24:40,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:24:40,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:24:40,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:24:40,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:24:40,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:24:40,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:24:40,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:24:40,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:24:40,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:24:40,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:24:40,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:24:40,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:24:40,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:24:40,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:24:40,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:24:40,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:24:40,486 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:24:40,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:24:40,487 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:24:40,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:24:40,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:24:40,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:24:40,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:24:40,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:24:40,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:24:40,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:24:40,489 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:24:40,489 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:24:40,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:24:40,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:24:40,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:24:40,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:24:40,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:24:40,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:24:40,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:40,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:24:40,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:24:40,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:24:40,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:24:40,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:24:40,493 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:24:40,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:24:40,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:24:40,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e280ea7002eb926faba3195da50aa743246f3289123bb9a1b445dc9aaf8e8f3d [2022-11-21 16:24:40,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:24:40,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:24:40,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:24:40,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:24:40,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:24:40,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-21 16:24:44,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:24:44,398 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:24:44,399 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2022-11-21 16:24:44,408 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/data/acf6ab7b2/664660f0c7094c48bc53eb78a127ec53/FLAGd696ed302 [2022-11-21 16:24:44,430 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/data/acf6ab7b2/664660f0c7094c48bc53eb78a127ec53 [2022-11-21 16:24:44,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:24:44,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:24:44,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:44,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:24:44,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:24:44,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:44,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7346a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44, skipping insertion in model container [2022-11-21 16:24:44,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:44,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:24:44,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:24:44,811 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_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-21 16:24:44,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:44,829 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:24:44,878 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_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-11-21 16:24:44,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:44,899 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:24:44,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44 WrapperNode [2022-11-21 16:24:44,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:44,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:44,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:24:44,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:24:44,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:44,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:44,994 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 661 [2022-11-21 16:24:44,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:44,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:24:44,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:24:44,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:24:45,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,066 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:24:45,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:24:45,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:24:45,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:24:45,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (1/1) ... [2022-11-21 16:24:45,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:45,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:45,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:24:45,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1f9b311-14fa-4a7d-b2d5-495ecb6e6b30/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:24:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:24:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:24:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:24:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:24:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:24:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:24:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:24:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:24:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:24:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:24:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 16:24:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 16:24:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:24:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:24:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:24:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:24:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:24:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:24:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:24:45,182 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:24:45,398 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:24:45,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:24:46,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:24:46,928 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:24:46,928 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-11-21 16:24:46,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:46 BoogieIcfgContainer [2022-11-21 16:24:46,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:24:46,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:24:46,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:24:46,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:24:46,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:24:44" (1/3) ... [2022-11-21 16:24:46,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30853e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:46, skipping insertion in model container [2022-11-21 16:24:46,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:44" (2/3) ... [2022-11-21 16:24:46,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30853e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:46, skipping insertion in model container [2022-11-21 16:24:46,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:46" (3/3) ... [2022-11-21 16:24:46,946 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-11-21 16:24:46,956 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:24:46,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:24:46,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2022-11-21 16:24:46,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:24:47,193 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 16:24:47,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 642 transitions, 1308 flow [2022-11-21 16:24:47,523 INFO L130 PetriNetUnfolder]: 36/639 cut-off events. [2022-11-21 16:24:47,524 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:24:47,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 639 events. 36/639 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2039 event pairs, 0 based on Foata normal form. 0/516 useless extension candidates. Maximal degree in co-relation 490. Up to 2 conditions per place. [2022-11-21 16:24:47,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 642 transitions, 1308 flow [2022-11-21 16:24:47,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 619 transitions, 1256 flow [2022-11-21 16:24:47,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:24:47,590 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;@6c0450bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:24:47,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2022-11-21 16:24:47,596 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-21 16:24:47,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:24:47,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:47,597 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] [2022-11-21 16:24:47,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-21 16:24:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -476637533, now seen corresponding path program 1 times [2022-11-21 16:24:47,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:47,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732999421] [2022-11-21 16:24:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:47,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:47,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:47,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732999421] [2022-11-21 16:24:47,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732999421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:47,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:47,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:24:47,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105640318] [2022-11-21 16:24:47,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:47,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:47,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:47,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 642 [2022-11-21 16:24:47,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 619 transitions, 1256 flow. Second operand has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:47,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:47,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 642 [2022-11-21 16:24:47,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:49,283 INFO L130 PetriNetUnfolder]: 219/2356 cut-off events. [2022-11-21 16:24:49,283 INFO L131 PetriNetUnfolder]: For 118/130 co-relation queries the response was YES. [2022-11-21 16:24:49,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 2356 events. 219/2356 cut-off events. For 118/130 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 18075 event pairs, 114 based on Foata normal form. 94/1970 useless extension candidates. Maximal degree in co-relation 1570. Up to 232 conditions per place. [2022-11-21 16:24:49,323 INFO L137 encePairwiseOnDemand]: 594/642 looper letters, 24 selfloop transitions, 2 changer transitions 8/573 dead transitions. [2022-11-21 16:24:49,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 573 transitions, 1216 flow [2022-11-21 16:24:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:24:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1776 transitions. [2022-11-21 16:24:49,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221183800623053 [2022-11-21 16:24:49,349 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1776 transitions. [2022-11-21 16:24:49,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1776 transitions. [2022-11-21 16:24:49,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:49,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1776 transitions. [2022-11-21 16:24:49,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.0) internal successors, (1776), 3 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:49,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:49,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:49,377 INFO L175 Difference]: Start difference. First operand has 594 places, 619 transitions, 1256 flow. Second operand 3 states and 1776 transitions. [2022-11-21 16:24:49,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 573 transitions, 1216 flow [2022-11-21 16:24:49,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 573 transitions, 1204 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 16:24:49,395 INFO L231 Difference]: Finished difference. Result has 562 places, 565 transitions, 1140 flow [2022-11-21 16:24:49,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=565} [2022-11-21 16:24:49,401 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -32 predicate places. [2022-11-21 16:24:49,401 INFO L495 AbstractCegarLoop]: Abstraction has has 562 places, 565 transitions, 1140 flow [2022-11-21 16:24:49,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:49,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:49,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:49,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:24:49,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-21 16:24:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1743612450, now seen corresponding path program 1 times [2022-11-21 16:24:49,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:49,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969701544] [2022-11-21 16:24:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:49,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:49,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969701544] [2022-11-21 16:24:49,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969701544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:49,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:49,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:24:49,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308549936] [2022-11-21 16:24:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:49,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:49,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 642 [2022-11-21 16:24:49,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 565 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 566.3333333333334) internal successors, (1699), 3 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:49,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:49,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 642 [2022-11-21 16:24:49,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:50,485 INFO L130 PetriNetUnfolder]: 179/2092 cut-off events. [2022-11-21 16:24:50,486 INFO L131 PetriNetUnfolder]: For 16/33 co-relation queries the response was YES. [2022-11-21 16:24:50,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2317 conditions, 2092 events. 179/2092 cut-off events. For 16/33 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15086 event pairs, 90 based on Foata normal form. 0/1691 useless extension candidates. Maximal degree in co-relation 2280. Up to 203 conditions per place. [2022-11-21 16:24:50,530 INFO L137 encePairwiseOnDemand]: 639/642 looper letters, 27 selfloop transitions, 2 changer transitions 0/564 dead transitions. [2022-11-21 16:24:50,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 564 transitions, 1196 flow [2022-11-21 16:24:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:24:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1725 transitions. [2022-11-21 16:24:50,535 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8956386292834891 [2022-11-21 16:24:50,535 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1725 transitions. [2022-11-21 16:24:50,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1725 transitions. [2022-11-21 16:24:50,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:50,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1725 transitions. [2022-11-21 16:24:50,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:50,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:50,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:50,547 INFO L175 Difference]: Start difference. First operand has 562 places, 565 transitions, 1140 flow. Second operand 3 states and 1725 transitions. [2022-11-21 16:24:50,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 564 transitions, 1196 flow [2022-11-21 16:24:50,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 564 transitions, 1192 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:24:50,559 INFO L231 Difference]: Finished difference. Result has 553 places, 564 transitions, 1138 flow [2022-11-21 16:24:50,560 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1138, PETRI_PLACES=553, PETRI_TRANSITIONS=564} [2022-11-21 16:24:50,561 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -41 predicate places. [2022-11-21 16:24:50,561 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 564 transitions, 1138 flow [2022-11-21 16:24:50,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 566.3333333333334) internal successors, (1699), 3 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:50,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:50,563 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:50,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:24:50,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-21 16:24:50,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:50,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2108473801, now seen corresponding path program 1 times [2022-11-21 16:24:50,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:50,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963449902] [2022-11-21 16:24:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:50,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:50,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:50,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963449902] [2022-11-21 16:24:50,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963449902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:50,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:50,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:24:50,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508540624] [2022-11-21 16:24:50,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:50,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:50,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:50,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:50,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 568 out of 642 [2022-11-21 16:24:50,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 564 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:50,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:50,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 568 of 642 [2022-11-21 16:24:50,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:51,406 INFO L130 PetriNetUnfolder]: 138/1860 cut-off events. [2022-11-21 16:24:51,406 INFO L131 PetriNetUnfolder]: For 14/23 co-relation queries the response was YES. [2022-11-21 16:24:51,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 1860 events. 138/1860 cut-off events. For 14/23 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12605 event pairs, 59 based on Foata normal form. 0/1538 useless extension candidates. Maximal degree in co-relation 1973. Up to 138 conditions per place. [2022-11-21 16:24:51,437 INFO L137 encePairwiseOnDemand]: 636/642 looper letters, 20 selfloop transitions, 1 changer transitions 0/559 dead transitions. [2022-11-21 16:24:51,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 559 transitions, 1170 flow [2022-11-21 16:24:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:24:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1730 transitions. [2022-11-21 16:24:51,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8982346832814122 [2022-11-21 16:24:51,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1730 transitions. [2022-11-21 16:24:51,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1730 transitions. [2022-11-21 16:24:51,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:51,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1730 transitions. [2022-11-21 16:24:51,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 576.6666666666666) internal successors, (1730), 3 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:51,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:51,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:51,454 INFO L175 Difference]: Start difference. First operand has 553 places, 564 transitions, 1138 flow. Second operand 3 states and 1730 transitions. [2022-11-21 16:24:51,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 559 transitions, 1170 flow [2022-11-21 16:24:51,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 559 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:24:51,465 INFO L231 Difference]: Finished difference. Result has 548 places, 559 transitions, 1126 flow [2022-11-21 16:24:51,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=548, PETRI_TRANSITIONS=559} [2022-11-21 16:24:51,467 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -46 predicate places. [2022-11-21 16:24:51,468 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 559 transitions, 1126 flow [2022-11-21 16:24:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.3333333333334) internal successors, (1708), 3 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:51,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:51,470 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:51,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:24:51,470 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-21 16:24:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:51,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1756411960, now seen corresponding path program 1 times [2022-11-21 16:24:51,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:51,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727113225] [2022-11-21 16:24:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:51,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:51,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:51,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727113225] [2022-11-21 16:24:51,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727113225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:51,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:51,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:24:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144067014] [2022-11-21 16:24:51,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:51,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:51,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 642 [2022-11-21 16:24:51,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 559 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:51,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:51,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 642 [2022-11-21 16:24:51,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:24:55,013 INFO L130 PetriNetUnfolder]: 1903/12614 cut-off events. [2022-11-21 16:24:55,013 INFO L131 PetriNetUnfolder]: For 146/153 co-relation queries the response was YES. [2022-11-21 16:24:55,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14861 conditions, 12614 events. 1903/12614 cut-off events. For 146/153 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 153290 event pairs, 1071 based on Foata normal form. 0/10034 useless extension candidates. Maximal degree in co-relation 14817. Up to 2169 conditions per place. [2022-11-21 16:24:55,205 INFO L137 encePairwiseOnDemand]: 639/642 looper letters, 30 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2022-11-21 16:24:55,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 558 transitions, 1188 flow [2022-11-21 16:24:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:24:55,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1719 transitions. [2022-11-21 16:24:55,214 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8925233644859814 [2022-11-21 16:24:55,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1719 transitions. [2022-11-21 16:24:55,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1719 transitions. [2022-11-21 16:24:55,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:24:55,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1719 transitions. [2022-11-21 16:24:55,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 573.0) internal successors, (1719), 3 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:55,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:55,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 642.0) internal successors, (2568), 4 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:55,232 INFO L175 Difference]: Start difference. First operand has 548 places, 559 transitions, 1126 flow. Second operand 3 states and 1719 transitions. [2022-11-21 16:24:55,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 558 transitions, 1188 flow [2022-11-21 16:24:55,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 558 transitions, 1187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:24:55,242 INFO L231 Difference]: Finished difference. Result has 548 places, 558 transitions, 1127 flow [2022-11-21 16:24:55,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=642, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=548, PETRI_TRANSITIONS=558} [2022-11-21 16:24:55,245 INFO L288 CegarLoopForPetriNet]: 594 programPoint places, -46 predicate places. [2022-11-21 16:24:55,246 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 558 transitions, 1127 flow [2022-11-21 16:24:55,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:55,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:24:55,247 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:55,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:24:55,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2022-11-21 16:24:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:55,248 INFO L85 PathProgramCache]: Analyzing trace with hash -761928708, now seen corresponding path program 1 times [2022-11-21 16:24:55,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:55,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269854593] [2022-11-21 16:24:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:55,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:55,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:55,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269854593] [2022-11-21 16:24:55,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269854593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:55,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:55,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:24:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395332090] [2022-11-21 16:24:55,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:55,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:24:55,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:55,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:24:55,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:55,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 439 out of 642 [2022-11-21 16:24:55,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 558 transitions, 1127 flow. Second operand has 6 states, 6 states have (on average 440.8333333333333) internal successors, (2645), 6 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:24:55,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:24:55,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 439 of 642 [2022-11-21 16:24:55,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand