./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8 --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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:28:09,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:28:09,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:28:09,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:28:09,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:28:09,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:28:09,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:28:09,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:28:09,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:28:09,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:28:09,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:28:09,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:28:09,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:28:09,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:28:09,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:28:09,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:28:09,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:28:09,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:28:09,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:28:09,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:28:09,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:28:09,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:28:09,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:28:09,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:28:09,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:28:09,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:28:09,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:28:09,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:28:09,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:28:09,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:28:09,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:28:09,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:28:09,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:28:09,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:28:09,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:28:09,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:28:09,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:28:09,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:28:09,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:28:09,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:28:09,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:28:09,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 11:28:09,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:28:09,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:28:09,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:28:09,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:28:09,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:28:09,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:28:09,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:28:09,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:28:09,223 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:28:09,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:28:09,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:28:09,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:28:09,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:28:09,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:28:09,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:28:09,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:28:09,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:28:09,227 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:28:09,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:28:09,227 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:28:09,227 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_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-12-13 11:28:09,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:28:09,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:28:09,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:28:09,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:28:09,443 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:28:09,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-12-13 11:28:12,106 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:28:12,340 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:28:12,341 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-12-13 11:28:12,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/data/0bde13b3a/05553853df784ef4a036e4c58bf43267/FLAGcd80578fb [2022-12-13 11:28:12,367 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/data/0bde13b3a/05553853df784ef4a036e4c58bf43267 [2022-12-13 11:28:12,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:28:12,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:28:12,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:28:12,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:28:12,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:28:12,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:12,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b29afb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12, skipping insertion in model container [2022-12-13 11:28:12,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:12,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:28:12,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:28:12,803 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_9caf60c0-cd70-4ab3-9174-8b942ace4739/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-12-13 11:28:12,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:28:12,854 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:28:12,889 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_9caf60c0-cd70-4ab3-9174-8b942ace4739/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-12-13 11:28:12,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:28:12,966 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:28:12,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12 WrapperNode [2022-12-13 11:28:12,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:28:12,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:28:12,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:28:12,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:28:12,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:12,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,035 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 406 [2022-12-13 11:28:13,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:28:13,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:28:13,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:28:13,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:28:13,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:28:13,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:28:13,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:28:13,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:28:13,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (1/1) ... [2022-12-13 11:28:13,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:28:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:28:13,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:28:13,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9caf60c0-cd70-4ab3-9174-8b942ace4739/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:28:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:28:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:28:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:28:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:28:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 11:28:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 11:28:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:28:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:28:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:28:13,193 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:28:13,319 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:28:13,321 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:28:13,820 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:28:13,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:28:13,833 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-12-13 11:28:13,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:28:13 BoogieIcfgContainer [2022-12-13 11:28:13,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:28:13,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:28:13,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:28:13,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:28:13,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:28:12" (1/3) ... [2022-12-13 11:28:13,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ccfde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:28:13, skipping insertion in model container [2022-12-13 11:28:13,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:28:12" (2/3) ... [2022-12-13 11:28:13,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ccfde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:28:13, skipping insertion in model container [2022-12-13 11:28:13,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:28:13" (3/3) ... [2022-12-13 11:28:13,844 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-12-13 11:28:13,851 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:28:13,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:28:13,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-12-13 11:28:13,860 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:28:13,959 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 11:28:13,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,160 INFO L130 PetriNetUnfolder]: 45/653 cut-off events. [2022-12-13 11:28:14,160 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:28:14,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 653 events. 45/653 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2129 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 361. Up to 8 conditions per place. [2022-12-13 11:28:14,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:28:14,189 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,191 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 450 transitions, 908 flow [2022-12-13 11:28:14,290 INFO L130 PetriNetUnfolder]: 45/653 cut-off events. [2022-12-13 11:28:14,290 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:28:14,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 653 events. 45/653 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2129 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 361. Up to 8 conditions per place. [2022-12-13 11:28:14,310 INFO L119 LiptonReduction]: Number of co-enabled transitions 63954 [2022-12-13 11:28:51,090 WARN L233 SmtUtils]: Spent 20.37s on a formula simplification. DAG size of input: 256 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:29:17,012 WARN L233 SmtUtils]: Spent 21.02s on a formula simplification. DAG size of input: 256 DAG size of output: 254 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:29:24,391 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:29:24,398 INFO L134 LiptonReduction]: Checked pairs total: 448393 [2022-12-13 11:29:24,398 INFO L136 LiptonReduction]: Total number of compositions: 260 [2022-12-13 11:29:24,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:29:24,411 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;@3af9652d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:29:24,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-12-13 11:29:24,412 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:29:24,412 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:29:24,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:29:24,413 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:29:24,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 11:29:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:29:24,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1462, now seen corresponding path program 1 times [2022-12-13 11:29:24,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:29:24,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495885890] [2022-12-13 11:29:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:29:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:29:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:29:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:29:24,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:29:24,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495885890] [2022-12-13 11:29:24,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495885890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:29:24,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:29:24,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:29:24,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005205499] [2022-12-13 11:29:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:29:24,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:29:24,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:29:24,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:29:24,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:29:24,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 710 [2022-12-13 11:29:24,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 233 transitions, 474 flow. Second operand has 2 states, 2 states have (on average 421.5) internal successors, (843), 2 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:29:24,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:29:24,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 710 [2022-12-13 11:29:24,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:29:25,201 INFO L130 PetriNetUnfolder]: 1171/4740 cut-off events. [2022-12-13 11:29:25,201 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:29:25,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7030 conditions, 4740 events. 1171/4740 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 38071 event pairs, 1073 based on Foata normal form. 308/4777 useless extension candidates. Maximal degree in co-relation 6861. Up to 2284 conditions per place. [2022-12-13 11:29:25,217 INFO L137 encePairwiseOnDemand]: 684/710 looper letters, 71 selfloop transitions, 0 changer transitions 0/207 dead transitions. [2022-12-13 11:29:25,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 207 transitions, 564 flow [2022-12-13 11:29:25,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:29:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:29:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 939 transitions. [2022-12-13 11:29:25,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6612676056338028 [2022-12-13 11:29:25,229 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 939 transitions. [2022-12-13 11:29:25,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 939 transitions. [2022-12-13 11:29:25,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:29:25,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 939 transitions. [2022-12-13 11:29:25,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 469.5) internal successors, (939), 2 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:29:25,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:29:25,243 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:29:25,244 INFO L175 Difference]: Start difference. First operand has 210 places, 233 transitions, 474 flow. Second operand 2 states and 939 transitions. [2022-12-13 11:29:25,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 207 transitions, 564 flow [2022-12-13 11:29:25,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 207 transitions, 564 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:29:25,250 INFO L231 Difference]: Finished difference. Result has 207 places, 207 transitions, 422 flow [2022-12-13 11:29:25,252 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=710, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=422, PETRI_PLACES=207, PETRI_TRANSITIONS=207} [2022-12-13 11:29:25,254 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, -3 predicate places. [2022-12-13 11:29:25,255 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 207 transitions, 422 flow [2022-12-13 11:29:25,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 421.5) internal successors, (843), 2 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:29:25,255 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:29:25,255 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 11:29:25,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:29:25,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 11:29:25,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:29:25,256 INFO L85 PathProgramCache]: Analyzing trace with hash 308387924, now seen corresponding path program 1 times [2022-12-13 11:29:25,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:29:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199839252] [2022-12-13 11:29:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:29:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:29:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:29:25,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:29:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:29:25,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:29:25,353 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:29:25,354 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-12-13 11:29:25,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-12-13 11:29:25,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-12-13 11:29:25,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-12-13 11:29:25,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-12-13 11:29:25,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-12-13 11:29:25,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:29:25,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:29:25,362 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 11:29:25,362 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 11:29:25,427 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:29:25,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,626 INFO L130 PetriNetUnfolder]: 76/1042 cut-off events. [2022-12-13 11:29:25,626 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:29:25,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 1042 events. 76/1042 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4695 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-13 11:29:25,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,642 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:29:25,642 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 568 places, 605 transitions, 1228 flow [2022-12-13 11:29:25,835 INFO L130 PetriNetUnfolder]: 76/1042 cut-off events. [2022-12-13 11:29:25,836 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:29:25,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 1042 events. 76/1042 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4695 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-12-13 11:29:25,889 INFO L119 LiptonReduction]: Number of co-enabled transitions 178092 [2022-12-13 11:29:55,150 WARN L233 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 258 DAG size of output: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:30:01,242 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:30:20,873 WARN L233 SmtUtils]: Spent 19.63s on a formula simplification. DAG size of input: 258 DAG size of output: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:30:29,110 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:30:29,119 INFO L134 LiptonReduction]: Checked pairs total: 1137610 [2022-12-13 11:30:29,119 INFO L136 LiptonReduction]: Total number of compositions: 322 [2022-12-13 11:30:29,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:30:29,121 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;@3af9652d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:30:29,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-12-13 11:30:29,122 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:30:29,122 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:30:29,122 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:30:29,122 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:30:29,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 11:30:29,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:30:29,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2544, now seen corresponding path program 1 times [2022-12-13 11:30:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:30:29,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328009602] [2022-12-13 11:30:29,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:30:29,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:30:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:30:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:30:29,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:30:29,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328009602] [2022-12-13 11:30:29,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328009602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:30:29,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:30:29,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:30:29,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852121919] [2022-12-13 11:30:29,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:30:29,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:30:29,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:30:29,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:30:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:30:29,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 927 [2022-12-13 11:30:29,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 331 transitions, 680 flow. Second operand has 2 states, 2 states have (on average 562.5) internal successors, (1125), 2 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:29,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:30:29,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 927 [2022-12-13 11:30:29,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:30:48,574 INFO L130 PetriNetUnfolder]: 75204/183251 cut-off events. [2022-12-13 11:30:48,574 INFO L131 PetriNetUnfolder]: For 344/400 co-relation queries the response was YES. [2022-12-13 11:30:48,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293349 conditions, 183251 events. 75204/183251 cut-off events. For 344/400 co-relation queries the response was YES. Maximal size of possible extension queue 2254. Compared 2304980 event pairs, 71010 based on Foata normal form. 13568/184481 useless extension candidates. Maximal degree in co-relation 248295. Up to 109926 conditions per place. [2022-12-13 11:30:49,324 INFO L137 encePairwiseOnDemand]: 892/927 looper letters, 104 selfloop transitions, 0 changer transitions 0/296 dead transitions. [2022-12-13 11:30:49,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 296 transitions, 818 flow [2022-12-13 11:30:49,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:30:49,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:30:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1263 transitions. [2022-12-13 11:30:49,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6812297734627831 [2022-12-13 11:30:49,327 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1263 transitions. [2022-12-13 11:30:49,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1263 transitions. [2022-12-13 11:30:49,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:30:49,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1263 transitions. [2022-12-13 11:30:49,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 631.5) internal successors, (1263), 2 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:49,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 927.0) internal successors, (2781), 3 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:49,335 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 927.0) internal successors, (2781), 3 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:49,335 INFO L175 Difference]: Start difference. First operand has 299 places, 331 transitions, 680 flow. Second operand 2 states and 1263 transitions. [2022-12-13 11:30:49,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 296 transitions, 818 flow [2022-12-13 11:30:49,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 296 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:30:49,340 INFO L231 Difference]: Finished difference. Result has 296 places, 296 transitions, 610 flow [2022-12-13 11:30:49,341 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=927, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=610, PETRI_PLACES=296, PETRI_TRANSITIONS=296} [2022-12-13 11:30:49,341 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, -3 predicate places. [2022-12-13 11:30:49,341 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 296 transitions, 610 flow [2022-12-13 11:30:49,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 562.5) internal successors, (1125), 2 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:49,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:30:49,342 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:30:49,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:30:49,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 11:30:49,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:30:49,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1205923098, now seen corresponding path program 1 times [2022-12-13 11:30:49,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:30:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634915889] [2022-12-13 11:30:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:30:49,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:30:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:30:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:30:49,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:30:49,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634915889] [2022-12-13 11:30:49,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634915889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:30:49,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:30:49,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:30:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440107029] [2022-12-13 11:30:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:30:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:30:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:30:49,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:30:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:30:49,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 927 [2022-12-13 11:30:49,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 296 transitions, 610 flow. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:30:49,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:30:49,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 927 [2022-12-13 11:30:49,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:31:06,781 INFO L130 PetriNetUnfolder]: 75201/184468 cut-off events. [2022-12-13 11:31:06,781 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2022-12-13 11:31:07,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294533 conditions, 184468 events. 75201/184468 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 2250. Compared 2330227 event pairs, 67335 based on Foata normal form. 0/172328 useless extension candidates. Maximal degree in co-relation 294528. Up to 109859 conditions per place. [2022-12-13 11:31:07,583 INFO L137 encePairwiseOnDemand]: 924/927 looper letters, 134 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2022-12-13 11:31:07,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 328 transitions, 946 flow [2022-12-13 11:31:07,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:31:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:31:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1811 transitions. [2022-12-13 11:31:07,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6512046026609133 [2022-12-13 11:31:07,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1811 transitions. [2022-12-13 11:31:07,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1811 transitions. [2022-12-13 11:31:07,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:31:07,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1811 transitions. [2022-12-13 11:31:07,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:31:07,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:31:07,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 927.0) internal successors, (3708), 4 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:31:07,596 INFO L175 Difference]: Start difference. First operand has 296 places, 296 transitions, 610 flow. Second operand 3 states and 1811 transitions. [2022-12-13 11:31:07,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 328 transitions, 946 flow [2022-12-13 11:31:07,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 328 transitions, 946 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:31:07,602 INFO L231 Difference]: Finished difference. Result has 299 places, 297 transitions, 622 flow [2022-12-13 11:31:07,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=927, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=299, PETRI_TRANSITIONS=297} [2022-12-13 11:31:07,602 INFO L288 CegarLoopForPetriNet]: 299 programPoint places, 0 predicate places. [2022-12-13 11:31:07,603 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 297 transitions, 622 flow [2022-12-13 11:31:07,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:31:07,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:31:07,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:31:07,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:31:07,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-13 11:31:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:31:07,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1973575930, now seen corresponding path program 1 times [2022-12-13 11:31:07,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:31:07,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030639463] [2022-12-13 11:31:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:31:07,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:31:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:31:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:31:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:31:07,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030639463] [2022-12-13 11:31:07,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030639463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:31:07,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:31:07,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:31:07,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844989697] [2022-12-13 11:31:07,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:31:07,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:31:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:31:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:31:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:31:08,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 927 [2022-12-13 11:31:08,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 297 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 409.6666666666667) internal successors, (2458), 6 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:31:08,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:31:08,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 927 [2022-12-13 11:31:08,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand